More ways to [name_u]Mars[/name_u]:
[name_m]Maro[/name_m]
[name_m]Lamar[/name_m]
[name_m]Marceau[/name_m]
[name_m]Martin[/name_m]
[name_f]Martel[/name_f]/l
[name_u]Marden[/name_u]
[name_m]Marvin[/name_m]
If your husband isn’t against the idea of mythological names, maybe:
[name_u]Orion[/name_u] (nn [name_f]Rion[/name_f]?)
[name_u]Oberon[/name_u] (nn. [name_m]Obie[/name_m]? [name_u]Ronnie[/name_u]?)
[name_m]Hawthorne[/name_m], [name_m]Thursten[/name_m], [name_m]Luther[/name_m]/[name_m]Luthor[/name_m], [name_m]Thornton[/name_m], [name_m]Thoreau[/name_m], [name_m]Thorin[/name_m], [name_m]Torin[/name_m], [name_m]Torquil[/name_m], Torbin, Athur etc, nn. [name_m]Thor[/name_m]
[name_m]Apollo[/name_m] (nn. [name_u]Ollie[/name_u]?)
[name_m]Brody[/name_m], [name_m]Bodhi[/name_m], [name_m]Rodion[/name_m], [name_u]Rodin[/name_u], etc nn. [name_m]Odin[/name_m]
[name_m]Jovan[/name_m], [name_m]Giovanni[/name_m], [name_m]Jovian[/name_m], [name_m]Jovi[/name_m], [name_u]Gervaise[/name_u]/[name_m]Gervais[/name_m], [name_m]Jarvis[/name_m] (?), Javor (?), [name_m]Joseph[/name_m], etc. nn. [name_m]Jove[/name_m]
Other thoughts: [name_u]Austen[/name_u], [name_u]Auden[/name_u], [name_u]Alden[/name_u], [name_m]Walden[/name_m], [name_u]Winslow[/name_u], [name_m]Woodrow[/name_m], [name_m]Winston[/name_m], [name_m]Aalto[/name_m], [name_m]Eero[/name_m], [name_m]Cleon[/name_m], [name_m]Finlo[/name_m], [name_m]Bardo[/name_m], [name_m]Viggo[/name_m], [name_m]Benno[/name_m], [name_m]Barlow[/name_m], [name_m]Amedeo[/name_m], [name_m]Gabo[/name_m], Miro, Mirko, [name_m]Ansel[/name_m], [name_u]Cato[/name_u], [name_m]Otto[/name_m], [name_m]Dario[/name_m], [name_m]Darrow[/name_m], [name_m]Ivo[/name_m], [name_u]Caro[/name_u], [name_m]Inigo[/name_m], [name_m]Malo[/name_m], [name_m]Maco[/name_m], Amaro, Aaro, Hallow, Harrow, [name_m]Harro[/name_m], [name_m]Galeno[/name_m], [name_m]Fiero[/name_m], [name_m]Helio[/name_m], [name_m]Haco[/name_m], [name_m]Arno[/name_m], [name_m]Ingo[/name_m], [name_m]Jago[/name_m], [name_m]Vito[/name_m], [name_m]Roland[/name_m], [name_m]Benton[/name_m], [name_u]Carlisle[/name_u], [name_m]Darwin[/name_m], [name_u]Darby[/name_u], [name_m]Faulkner[/name_m], [name_m]Harmon[/name_m], [name_m]Larsen[/name_m], [name_m]Sylvan[/name_m], [name_m]Milton[/name_m], [name_u]Spencer[/name_u], [name_u]Munro[/name_u], [name_m]Orson[/name_m], [name_m]Oren[/name_m], [name_m]Caio[/name_m], [name_u]Roscoe[/name_u], [name_m]Otis[/name_m], [name_m]Forster[/name_m], [name_m]Ambrose[/name_m], [name_m]Lowell[/name_m], [name_m]Lorcan[/name_m], [name_m]Loman[/name_m], [name_u]Windsor[/name_u], [name_m]Anson[/name_m], [name_u]Arden[/name_u], [name_m]Theron[/name_m], [name_m]Cabot[/name_m], [name_m]Calloway[/name_m], [name_m]Clovis[/name_m], [name_m]Ogden[/name_m], [name_u]Yarrow[/name_u], [name_m]Grover[/name_m], [name_m]Edison[/name_m], [name_m]Malcolm[/name_m], [name_m]Magnus[/name_m], [name_u]Malin[/name_u]