I love the nickname [name_u]Sunny[/name_u]! I wish I was bold enough to use it as a full name but I am not…
I was wondering if anybody had any good suggestions for a full name?
[name_f]Sunniva[/name_f]
[name_f]Soleil[/name_f]
[name_f]Susannah[/name_f]
[name_f]Summer[/name_f]
[name_f]Sunday[/name_f]
[name_f]Sonnet[/name_f]
What about [name_f]Savannah[/name_f]?
You could really use any name and nickname her [name_u]Sunny[/name_u]. Maybe a name that means sun such as
[name_f]Apollonia[/name_f] (Latin)
[name_f]Cira[/name_f] (Italian)
[name_f]Domenica[/name_f] (Italian for [name_f]Sunday[/name_f], and a much prettier name than [name_f]Sunday[/name_f]!)
[name_f]Marisol[/name_f] (Spanish)
[name_f]Kyra[/name_f] (Irish/Persian)
[name_f]Selena[/name_f]/[name_f]Eleanor[/name_f]/[name_f]Ellen[/name_f]/[name_f]Elena[/name_f]/[name_f]Eliana[/name_f] (Greek)
[name_m]Cymbeline[/name_m] (Celtic)
[name_f]Helene[/name_f]/Soliel/[name_f]Solange[/name_f] ([name_m]French[/name_m])
[name_f]Lianna[/name_f] (English)
[name_f]Samantha[/name_f] (Hebrew-female for [name_m]Samson[/name_m])
Synneva (Scandanavian)
[name_f]Sunniva[/name_f] is my absolute favourite full name for [name_u]Sunny[/name_u]. I also like [name_f]Marisol[/name_f] and [name_f]Soleil[/name_f] would both work really well.
When I was in 7th grade I wrote a 147-page manuscript about a girl named [name_f]Sonia[/name_f], nicknamed [name_u]Sunny[/name_u]. 
I honestly think anything starting with an S and that has an N works: [name_u]Sydney[/name_u], [name_f]Serena[/name_f], [name_f]Sabrina[/name_f]/[name_f]Sabine[/name_f]/[name_f]Sabina[/name_f], [name_f]Saffronia[/name_f]/[name_f]Saffron[/name_f], [name_f]Sienna[/name_f]/Sienne, [name_f]Seraphine[/name_f]/[name_f]Seraphina[/name_f], [name_f]Shauna[/name_f], [name_f]Shayna[/name_f], Scheena, [name_f]Shoshana[/name_f], [name_u]Simone[/name_u], [name_u]Sloan[/name_u], [name_f]Solange[/name_f], [name_f]Sonata[/name_f], Sorren
Also anything ending in –son or the same sound: [name_u]Addison[/name_u], [name_u]Madison[/name_u], [name_u]Emerson[/name_u], [name_f]Alison[/name_f], [name_u]Carson[/name_u], [name_u]Hudson[/name_u], [name_u]Ellison[/name_u], [name_u]Mason[/name_u], [name_f]Susan[/name_f], [name_m]Cayson[/name_m]
Other sun-related names (sun, yellow, gold, bright, light, shining, burning, morning/dawn, day, summer, happy/cheerful):
[name_u]Asa[/name_u], [name_f]Aurora[/name_f], [name_f]Aurelia[/name_f], Auralie, [name_f]Aida[/name_f], [name_f]Alaia[/name_f], [name_f]Alair[/name_f], [name_f]Alana[/name_f]/[name_f]Alanis[/name_f], [name_f]Aileen[/name_f], [name_f]Alina[/name_f], Abellona, [name_f]Asia[/name_f], [name_f]Allegra[/name_f]
[name_f]Blythe[/name_f], [name_f]Bonnie[/name_f], [name_u]Brighton[/name_u], [name_u]Bliss[/name_u]
[name_f]Cressida[/name_f], [name_f]Claire[/name_f]/[name_f]Clara[/name_f]/[name_f]Clarabelle[/name_f]/[name_f]Clarette[/name_f], [name_f]Clarice[/name_f], [name_f]Clarinda[/name_f], [name_f]Clarissa[/name_f], [name_f]Cassandra[/name_f], [name_f]Chiara[/name_f], Cheryth, [name_f]Christa[/name_f], [name_f]Ciara[/name_f],
[name_f]Dawn[/name_f], [name_f]Danica[/name_f]
[name_f]Elaine[/name_f], [name_f]Eda[/name_f], [name_f]Eileen[/name_f], [name_f]Ellie[/name_f], [name_f]Electra[/name_f], [name_f]Elin[/name_f], [name_u]Eloise[/name_u]
[name_f]Felicity[/name_f], [name_f]Farrah[/name_f], [name_f]Felicia[/name_f]
[name_f]Golda[/name_f]/[name_f]Gilda[/name_f]/[name_f]Goldia[/name_f], [name_f]Gwyneth[/name_f]
[name_f]Helia[/name_f], [name_u]Hillary[/name_u], [name_f]Helen[/name_f]/[name_f]Helena[/name_f], [name_f]Hana[/name_f]
[name_f]Idalia[/name_f], [name_m]Ilara[/name_m]/[name_f]Ilaria[/name_f], [name_f]Ilona[/name_f], [name_f]Ida[/name_f]
[name_f]Kalinda[/name_f], [name_m]Kiran[/name_m]
[name_u]Jay[/name_u]/[name_u]Jacey[/name_u], [name_f]Joy[/name_f]
[name_f]Leda[/name_f], [name_u]Laney[/name_u], [name_f]Lana[/name_f], [name_f]Lucinda[/name_f], [name_f]Lenore[/name_f]/[name_f]Leonora[/name_f]/[name_f]Leora[/name_f], [name_f]Lucia[/name_f], [name_f]Lucetta[/name_f], [name_f]Luciana[/name_f], [name_f]Lucille[/name_f], [name_f]Lucy[/name_f], [name_f]Lara[/name_f], [name_f]Larissa[/name_f]
Mirri, [name_f]Merry[/name_f], [name_f]Makenna[/name_f], [name_u]Morgan[/name_u]
[name_f]Nell[/name_f]/[name_f]Nella[/name_f]/[name_u]Nelly[/name_u], [name_f]Nora[/name_f]
[name_f]Oriane[/name_f]/[name_f]Oriana[/name_f], [name_f]Orla[/name_f], [name_f]Olena[/name_f]
[name_f]Phaedra[/name_f], [name_f]Phoebe[/name_f]
[name_f]Roxanne[/name_f]/[name_f]Roxy[/name_f], [name_f]Rinah[/name_f], [name_f]Rowena[/name_f]
Solaris, [name_f]Solana[/name_f], [name_f]Solveig[/name_f], [name_f]Senna[/name_f], [name_f]Sorcha[/name_f], [name_f]Seraphine[/name_f]/[name_f]Seraphina[/name_f], [name_f]Shira[/name_f], [name_f]Svetlana[/name_f]
[name_f]Thea[/name_f], [name_f]Theresa[/name_f], [name_u]Tatum[/name_u]/[name_u]Tate[/name_u]
[name_f]Vera[/name_f], [name_f]Vanna[/name_f]
[name_f]Winifred[/name_f]/[name_u]Wynn[/name_u]/[name_f]Winnie[/name_f]
[name_f]Xanthe[/name_f]
[name_f]Zora[/name_f]/[name_f]Zorina[/name_f], [name_f]Zelda[/name_f], [name_f]Zahara[/name_f]
Great suggestions already, but I’d like to add [name_f]Solana[/name_f] (I know someone with this name and can easily imagine people calling her [name_u]Sunny[/name_u]) or [name_u]Sullivan[/name_u], if you like unisex names.
Sinnivah was my first thought. I love the name [name_f]Sunday[/name_f].
[name_f]Susanna[/name_f], [name_f]Oksana[/name_f], [name_u]Santana[/name_u], [name_f]Roksana[/name_f]
[name_f]Sunniva[/name_f] would be my favourite. I used [name_f]Sunshine[/name_f] as a middle name but am guessing that wouldn’t seem any easier to you.