Jumping on the bandwagon, sorry 
What’s your favourite full names for some of my favourite NN’s - interested to see what other people come up with, feel free to get as creative as you want 
Girls:
Lilo
Fairy
Nia
Rio
Poe
Lacy
Tali
Elsie
Maisy
Kenzi
Tui
Boys:
Koda
Koa
Az
Teo
Neo
Mars
Rex
Nico
Ry
[name_f]Lilo[/name_f] → [name_f]Leonora[/name_f]
[name_f]Fairy[/name_f] → [name_f]Ferelith[/name_f]
[name_f]Nia[/name_f] → [name_f]Apollonia[/name_f]
[name_f]Rio[/name_f] → [name_f]Rowena[/name_f]
[name_m]Poe[/name_m] → [name_f]Paloma[/name_f]
[name_f]Lacy[/name_f] → [name_f]Cecilia[/name_f]
[name_f]Tali[/name_f] → [name_f]Talia[/name_f]
[name_f]Elsie[/name_f] → [name_f]Elspeth[/name_f] / [name_f]Elsbeth[/name_f]
[name_f]Maisy[/name_f] → [name_f]Margaret[/name_f] or [name_f]Mazarine[/name_f]
[name_f]Kenzi[/name_f] → [name_f]Mackenzie[/name_f]
[name_f]Tui[/name_f] → [name_f]Tuuli[/name_f] or [name_f]Petunia[/name_f]
[name_m]Koda[/name_m] → maybe [name_m]Koa[/name_m] [name_f]Darcy[/name_f]
[name_m]Koa[/name_m] → maybe [name_m]Oskar[/name_m]
Az → [name_m]Ambrose[/name_m]
[name_m]Teo[/name_m] → [name_m]Theodore[/name_m]
[name_m]Neo[/name_m] → maybe [name_m]Neville[/name_m] [name_m]Orson[/name_m]
[name_m]Mars[/name_m] → [name_m]Marius[/name_m]
[name_m]Rex[/name_m] → [name_m]Reginald[/name_m] or something else that meant king like [name_m]Rory[/name_m]
[name_m]Nico[/name_m] → [name_m]Nicolas[/name_m] or [name_m]Nicolai[/name_m]
[name_m]Ry[/name_m] → [name_m]Rudy[/name_m] or [name_m]Ryder[/name_m]
[name_f]Lilo[/name_f] (love this one btw!!) - [name_f]Lilouenn[/name_f]
[name_f]Fairy[/name_f] - [name_f]Fifer[/name_f]
[name_f]Nia[/name_f] - Evyenia
[name_f]Rio[/name_f] - [name_f]Rhiannon[/name_f]
[name_m]Poe[/name_m] - [name_f]Polina[/name_f]
[name_f]Lacy[/name_f] - [name_f]Celeste[/name_f]
[name_f]Tali[/name_f] - [name_f]Catalina[/name_f]
[name_f]Elsie[/name_f] - [name_f]Elsje[/name_f]
[name_f]Maisy[/name_f] - [name_f]Marguerite[/name_f]
[name_f]Kenzi[/name_f] - [name_f]Kerensa[/name_f]
[name_f]Tui[/name_f] - Tuija
[name_m]Koda[/name_m] - Kostadin
[name_m]Koa[/name_m] - [name_m]Nikolay[/name_m]
Az - Asen, Atanáz
[name_m]Teo[/name_m] - [name_m]Teodor[/name_m]
[name_m]Neo[/name_m] - [name_m]Phinneas[/name_m]
[name_m]Mars[/name_m] - [name_m]Marius[/name_m]
[name_m]Rex[/name_m] - [name_m]Renzo[/name_m]
[name_m]Nico[/name_m] - Nicolae
[name_m]Ry[/name_m] - [name_m]Raivo[/name_m]
[name_f]Lilo[/name_f] - [name_f]Leonie[/name_f], [name_f]Calliope[/name_f], [name_f]Liora[/name_f]
[name_f]Fairy[/name_f] - [name_f]Ferelith[/name_f]
[name_f]Nia[/name_f] - [name_f]Antonia[/name_f], [name_f]Nadia[/name_f]
[name_f]Rio[/name_f] - [name_m]Rosario[/name_m], [name_f]Rosalie[/name_f]
[name_m]Poe[/name_m] - [name_f]Paloma[/name_f], [name_f]Penelope[/name_f], [name_f]Persephone[/name_f]
[name_f]Lacy[/name_f] - [name_f]Larissa[/name_f], [name_f]Leocadia[/name_f]
[name_f]Tali[/name_f] - [name_f]Tallulah[/name_f], [name_f]Charlotte[/name_f]
[name_f]Elsie[/name_f] - [name_f]Elswyth[/name_f]
[name_f]Maisy[/name_f] - [name_f]Mavis[/name_f]
[name_f]Kenzi[/name_f] - [name_f]Kerenza[/name_f]
[name_f]Tui[/name_f] - [name_f]Tallulah[/name_f], [name_f]Tuesday[/name_f]
[name_m]Koda[/name_m] - [name_m]Nekoda[/name_m], [name_m]Konrad[/name_m]
[name_m]Koa[/name_m] - [name_m]Jakoby[/name_m], [name_m]Oakwell[/name_m], [name_m]Kosmo[/name_m] / [name_m]Cosmo[/name_m]
Az - [name_m]Azarius[/name_m]
[name_m]Teo[/name_m] - Thaddeas, [name_m]Dante[/name_m]
[name_m]Neo[/name_m] - [name_m]Aneurin[/name_m]
[name_m]Mars[/name_m] - [name_m]Marshall[/name_m]
[name_m]Rex[/name_m] - [name_m]Rufus[/name_m], [name_m]Rexford[/name_m], [name_m]Rafferty[/name_m]
[name_m]Nico[/name_m] - [name_m]Nicolai[/name_m]
[name_m]Ry[/name_m] - [name_m]Henry[/name_m], [name_m]Rafferty[/name_m]
[name_f]Faye[/name_f] or Faradae nn [name_f]Fairy[/name_f]
[name_f]Antonia[/name_f] nn [name_f]Nia[/name_f]
[name_f]Paloma[/name_f] nn [name_m]Poe[/name_m]
[name_f]Tallulah[/name_f] nn [name_f]Tali[/name_f]
[name_f]Elsinore[/name_f] nn [name_f]Elsie[/name_f]
[name_f]Tuesday[/name_f] nn [name_f]Tui[/name_f]
[name_m]Kodiak[/name_m] nn [name_m]Koda[/name_m]
[name_m]Kaikoa[/name_m] nn [name_m]Koa[/name_m]
[name_m]Aslan[/name_m] nn Az
[name_m]Mateo[/name_m] nn [name_m]Teo[/name_m]
[name_m]Omar[/name_m] nn [name_m]Mars[/name_m]
[name_m]Rylo[/name_m] nn [name_m]Ry[/name_m]
Some lovely suggestions, thanks guys
Okay!
Girls:
Lilo-Lorelei…Eloisa?
Fairy-Francesca?
Nia-Antonia!
Rio-For some reason I’m feeling [name_f]Rosamund[/name_f].
Poe-Penelope!
Lacy-Luciana?
Tali-Talia or [name_f]Tallula[/name_f]. Both darling.
Elsie-Elizabeth, [name_f]Elsa[/name_f], [name_f]Elspeth[/name_f].
Maisy-I like [name_f]Madeline[/name_f]! Also, [name_f]Mary[/name_f], [name_f]Margaret[/name_f], [name_f]Maureen[/name_f].
Kenzi-Katherine?
Tui-Tullia?
Boys:
Koda-I don’t know. All I can think of is [name_m]Dakota[/name_m], but that’d be weird because of the ‘t’.
Koa-Love this as a full name. [name_m]Nicolas[/name_m]?
Az-Atlas or [name_m]Asher[/name_m], maybe.
Teo-Mateo or [name_m]Theodore[/name_m].
Neo-Nehemiah!
Mars-Martin?
Rex-Alexander.
Nico-Nicolas, but also [name_m]Nehemiah[/name_m].
Ry-Rider or [name_f]Reilly[/name_f].
[name_f]Hope[/name_f] this helps. 
[name_f]Lilo[/name_f] - [name_f]Lilyrose[/name_f]
[name_f]Nia[/name_f] - [name_f]Nadia[/name_f]
[name_f]Rio[/name_f] - Aristomache
[name_f]Tali[/name_f] - [name_f]Atalanta[/name_f]
[name_f]Elsie[/name_f] - [name_f]Elsa[/name_f]
[name_m]Koda[/name_m] - Kostadin
Timotheo - [name_m]Teo[/name_m]
[name_m]Newton[/name_m] - [name_m]Neo[/name_m]
[name_m]Marcel[/name_m] - [name_m]Mars[/name_m]
[name_m]Nico[/name_m] - [name_m]Nicolaas[/name_m]
Girls:
Lilo - [name_f]Lillian[/name_f]
Fairy - [name_f]Fairuza[/name_f]
Nia - [name_f]Rhiannon[/name_f]
Rio - [name_m]Rosario[/name_m]
Poe - [name_f]Poesy[/name_f]
Lacy - [name_f]Thalassa[/name_f]
Tali - [name_f]Natalie[/name_f]
Elsie - [name_f]Eloise[/name_f]
Maisy - [name_f]Mazikeen[/name_f]
Kenzi - [name_f]Kerenza[/name_f]
Tui - [name_f]Tauriel[/name_f]
Boys:
Koda - [name_m]Kodiak[/name_m]
Koa - [name_m]Kaikoa[/name_m]
Az - [name_m]Azriel[/name_m]
Teo - [name_m]Tiernon[/name_m]
Neo - [name_m]Antonio[/name_m]
Mars - [name_f]Marlowe[/name_f]
Rex - [name_m]Xavier[/name_m]
Nico - [name_m]Nicholas[/name_m]
Ry - [name_m]Rylan[/name_m]
[name_f]Calliope[/name_f] ‘Lilo’
[name_f]Faith[/name_f] ‘Fairy’
[name_f]Zinnia[/name_f] ‘Nia’
[name_f]Reese[/name_f] ‘Rio’
[name_f]Posy[/name_f] ‘Poe’
[name_f]Larissa[/name_f] ‘Lacy’
[name_f]Natalia[/name_f] ‘Tali’
[name_f]Elisabeth[/name_f] ‘Elsie’ (though I’d prefer placing around with the L C initials (e.g. [name_f]Lila[/name_f] Catherine) then calling her LC/Elsie)
[name_f]Melissa[/name_f] ‘Maisy’
[name_f]Mackenzie[/name_f] ‘Kenzi’
[name_f]Tallulah[/name_f] ‘Tui’
[name_m]Dakota[/name_m] ‘Koda’
[name_m]Colby[/name_m] ‘Koa’
[name_m]Atlas[/name_m] 'Az
[name_m]Matteo[/name_m] 'Teo
[name_m]Nikolai[/name_m] ‘Neo’
[name_f]Marley[/name_f] ‘Mars’
Rexlee ‘Rex’
[name_m]Nicholas[/name_m] ‘Nico’ 
[name_m]Rylan[/name_m] ‘Ry’
[name_f]Lilo[/name_f] - [name_f]Lillian[/name_f]
[name_f]Fairy[/name_f] - [name_f]Felicity[/name_f]? Not sure honestly
[name_f]Nia[/name_f] - [name_f]Zinnia[/name_f]
[name_f]Rio[/name_f] - [name_f]Bryony[/name_f]
[name_m]Poe[/name_m] - [name_f]Poet[/name_f] or [name_f]Posie[/name_f]
[name_f]Lacy[/name_f] - [name_f]Cecily[/name_f]
[name_f]Tali[/name_f] - [name_f]Talia[/name_f]
[name_f]Elsie[/name_f] - [name_f]Elizabeth[/name_f]
[name_f]Maisy[/name_f] - [name_f]Margaret[/name_f]
[name_f]Kenzi[/name_f] - [name_f]Makenzie[/name_f]
[name_f]Tui[/name_f] - not sure, but maybe [name_f]Petunia[/name_f]?
[name_m]Koda[/name_m] - [name_m]Dakota[/name_m]
[name_m]Koa[/name_m] - [name_m]Tekoa[/name_m]
Az - [name_m]Azlan[/name_m]
[name_m]Teo[/name_m] - [name_m]Matteo[/name_m]
[name_m]Neo[/name_m] - nothing but [name_m]Neon[/name_m] comes to mind
[name_m]Mars[/name_m] - [name_m]Marcus[/name_m]
[name_m]Rex[/name_m] - [name_m]Rexford[/name_m]
[name_m]Nico[/name_m] - [name_m]Nicodemus[/name_m] or just [name_m]Nicholas[/name_m]
[name_m]Ry[/name_m] - [name_m]Ryder[/name_m] or [name_m]Ryland[/name_m]
[name_f]Lilo[/name_f] → [name_f]Lillian[/name_f]
[name_f]Fairy[/name_f] → [name_f]Farrah[/name_f]
[name_f]Nia[/name_f] → [name_f]Antonia[/name_f] or [name_f]Zinnia[/name_f]
[name_f]Rio[/name_f] → [name_f]Maria[/name_f]
[name_m]Poe[/name_m] → [name_f]Penelope[/name_f]
[name_f]Lacy[/name_f] → Delacey
[name_f]Tali[/name_f] → [name_f]Talia[/name_f]
[name_f]Elsie[/name_f] → [name_f]Elisabeth[/name_f]
[name_f]Maisy[/name_f] → [name_f]Margaret[/name_f] or [name_f]Mackenzie[/name_f] (or just Maisy!)
[name_f]Kenzi[/name_f] → [name_f]Mackenzie[/name_f]
[name_f]Tui[/name_f] → [name_f]Trueth[/name_f]
[name_m]Koda[/name_m] → just [name_m]Koda[/name_m], or [name_m]Nicodemus[/name_m]
[name_m]Koa[/name_m] → [name_m]Tekoa[/name_m]
Az → [name_m]Alexander[/name_m] or [name_m]Almanzo[/name_m]
[name_m]Teo[/name_m] → [name_m]Mateo[/name_m]
[name_m]Neo[/name_m] → just [name_m]Neo[/name_m], or [name_m]Nicholas[/name_m]?
[name_m]Mars[/name_m] → [name_m]Marshall[/name_m]
[name_m]Rex[/name_m] → [name_m]Roscoe[/name_m]?
[name_m]Nico[/name_m] → [name_m]Nicholas[/name_m]
[name_m]Ry[/name_m] → [name_m]Rylan[/name_m]
[name_f]Lilo[/name_f] - [name_f]Lillian[/name_f], [name_f]Calypso[/name_f]
[name_f]Fairy[/name_f] - [name_f]Faye[/name_f], [name_f]Phaedra[/name_f]
[name_f]Nia[/name_f] - [name_f]Magnolia[/name_f]
[name_f]Rio[/name_f] - [name_m]River[/name_m]
[name_m]Poe[/name_m] - [name_f]Posey[/name_f]
[name_f]Lacy[/name_f] - [name_f]Solace[/name_f]
[name_f]Tali[/name_f] - [name_f]Natalia[/name_f]
[name_f]Elsie[/name_f] - [name_f]Elsinore[/name_f], [name_f]Elisabeth[/name_f]
[name_f]Maisy[/name_f] - [name_f]Margaret[/name_f]
[name_f]Kenzi[/name_f] - MacKenzie, [name_f]Kenza[/name_f]
[name_f]Tui[/name_f] - [name_f]Tula[/name_f], Tullulah
[name_m]Koda[/name_m] - [name_m]Dakota[/name_m]
[name_m]Koa[/name_m] - [name_m]Dakota[/name_m]
Az - [name_m]Azlan[/name_m], [name_m]Aslan[/name_m]
[name_m]Teo[/name_m] - [name_m]Teodor[/name_m], [name_m]Teodoro[/name_m]
[name_m]Neo[/name_m] - [name_m]Nathaniel[/name_m]
[name_m]Mars[/name_m] - [name_m]Marsden[/name_m], [name_m]Marcel[/name_m], [name_m]Marsel[/name_m]
[name_m]Rex[/name_m] - [name_m]Reddick[/name_m], [name_m]Kingsley[/name_m]
[name_m]Nico[/name_m] - [name_f]Nicola[/name_f], [name_m]Nicolo[/name_m]
[name_m]Ry[/name_m] - [name_m]Ryan[/name_m], [name_f]Riley[/name_f], [name_m]Ryland[/name_m]
[name_f]Lilo[/name_f] - Elinora
[name_f]Fairy[/name_f] - [name_f]Francine[/name_f]
[name_f]Nia[/name_f] - [name_f]Delphinia[/name_f]
[name_f]Rio[/name_f] - [name_f]Marion[/name_f], [name_f]Brionna[/name_f]
[name_m]Poe[/name_m] - [name_f]Portia[/name_f]
[name_f]Lacy[/name_f] - [name_f]Leticia[/name_f]
[name_f]Tali[/name_f] - [name_f]Talia[/name_f]
[name_f]Elsi[/name_f] - [name_f]Elise[/name_f]
[name_f]Maisy[/name_f] - Amalise
[name_f]Kenzi[/name_f] - MacKenzie
[name_f]Tui[/name_f] - Tunisia / Tulisia
[name_m]Koda[/name_m]- [name_m]Konrad[/name_m]
[name_m]Koa[/name_m] - [name_m]Nikolai[/name_m]
Az - Azeen
[name_m]Teo[/name_m] - [name_m]Theodore[/name_m]
[name_m]Mars[/name_m] - [name_m]Marshall[/name_m]
[name_m]Rex[/name_m] - [name_m]Maverick[/name_m]
[name_m]Nico[/name_m] - Nicolaj
[name_m]Ry[/name_m] - [name_m]Ryder[/name_m]
[name_f]Lilo[/name_f] - [name_f]Lilian[/name_f]
[name_f]Fairy[/name_f] - [name_f]Faerydae[/name_f]
[name_f]Nia[/name_f] - [name_f]Antonia[/name_f]
[name_f]Rio[/name_f] - [name_f]Rowena[/name_f]
[name_m]Poe[/name_m] - [name_f]Persephone[/name_f]
[name_f]Lacy[/name_f] - [name_f]Alaska[/name_f]
[name_f]Tali[/name_f] - [name_f]Natalia[/name_f]
[name_f]Elsie[/name_f] - [name_f]Elsbeth[/name_f]
[name_f]Maisy[/name_f] - [name_f]Margaret[/name_f]
[name_f]Kenzi[/name_f] - McKenzie
[name_f]Tui[/name_f] - I have no clue
[name_m]Koda[/name_m] - [name_m]Dakota[/name_m]
[name_m]Koa[/name_m] - I like it as a full name
Az - [name_m]Azriel[/name_m]
[name_m]Teo[/name_m] - [name_m]Teodore[/name_m]
[name_m]Neo[/name_m] - [name_m]Neon[/name_m]
[name_m]Mars[/name_m] - [name_m]Marcus[/name_m]
[name_m]Rex[/name_m] - I like this as a full name
[name_m]Nico[/name_m] - [name_m]Nikolai[/name_m]
[name_m]Ry[/name_m] - [name_m]Ryatt[/name_m]
[name_f]Lilo[/name_f]: [name_f]Lilivere[/name_f], [name_f]Lilouenn[/name_f],
[name_f]Fairy[/name_f]: [name_f]Farrah[/name_f], [name_f]Fairylithe[/name_f], [name_f]Fairylight[/name_f], [name_f]Ferelith[/name_f]
[name_f]Nia[/name_f]: [name_f]Naomi[/name_f], [name_f]Cornelia[/name_f]
[name_f]Rio[/name_f]: [name_f]Rose[/name_f], [name_f]Rionna[/name_f] / [name_f]Riona[/name_f]
[name_m]Poe[/name_m]: [name_f]Portia[/name_f], [name_f]Posie[/name_f]
[name_f]Lacy[/name_f]: [name_f]Lettice[/name_f], [name_f]Lucerne[/name_f], [name_f]Lucille[/name_f], Lucillia
[name_f]Tali[/name_f]: [name_m]Talmadge[/name_m], [name_f]Talula[/name_f], [name_f]Thalia[/name_f]
[name_f]Elsie[/name_f]: [name_f]Edelweiss[/name_f], [name_f]Elizabeth[/name_f], [name_f]Elsbeth[/name_f] / [name_f]Elspeth[/name_f]
[name_f]Maisy[/name_f]: [name_f]Mazarine[/name_f], [name_f]Marissa[/name_f], [name_f]Melissa[/name_f]
[name_f]Kenzi[/name_f]: McKenzi, McKenna, [name_f]Kensington[/name_f], Kenora,
[name_f]Tui[/name_f]: [name_f]Tuppence[/name_f], [name_f]Talula[/name_f], [name_f]Tuesday[/name_f]
[name_m]Koda[/name_m]: [name_m]Kodiak[/name_m], [name_m]Dakota[/name_m],
[name_m]Koa[/name_m]: [name_m]Kaikoa[/name_m], [name_m]Hezekiah[/name_m],
Az: [name_m]Isaiah[/name_m], [name_f]Aster[/name_f], [name_m]Azlan[/name_m],
[name_m]Teo[/name_m]: [name_m]Teodoro[/name_m], [name_m]Teodosio[/name_m], [name_m]Teofil[/name_m], [name_m]Matteo[/name_m], [name_m]Timoteo[/name_m]
[name_m]Neo[/name_m]: [name_m]Nico[/name_m], [name_m]Newell[/name_m], Nostradamus, [name_m]Romeo[/name_m]
[name_m]Mars[/name_m]: [name_m]Marcellus[/name_m], [name_m]Vladimar[/name_m], [name_m]Valdamar[/name_m],
[name_m]Rex[/name_m]: [name_m]Richard[/name_m], [name_m]Rexton[/name_m], [name_m]Rexford[/name_m], Rexalbus
[name_m]Nico[/name_m]: [name_m]Nicolas[/name_m], [name_f]Nicola[/name_f], [name_m]Nicodemus[/name_m], [name_m]Enrico[/name_m],
[name_m]Ry[/name_m]: [name_m]Ryder[/name_m], [name_m]Rhysand[/name_m], [name_f]Rion[/name_f], Riobert