I think [name_m]Saturn[/name_m] is cool !! Definitely a heavy name, but as long as you pair it with a more familiar middle name, I think it can work. You could do Sanny/Sunny as a nickname? or [name_f]Shay[/name_f]?
[name_f][/name_f]Other ideas: [name_m]Somerled[/name_m], [name_m]Solomon[/name_m], [name_m]Sullivan[/name_m], [name_f]Starling[/name_f], [name_m]Samson[/name_m], [name_m]Shepherd[/name_m], [name_m]Seamus[/name_m], [name_m]Stellan[/name_m], [name_m]Stelian[/name_m], [name_m]Sal[/name_m], [name_m]Sol[/name_m], [name_m]Sylvan[/name_m], [name_m]Salvatore[/name_m], [name_m]Sebastien[/name_m], [name_m]Severin[/name_m], [name_m]Serafim[/name_m], [name_m]Sabin[/name_m], [name_m]Sascha[/name_m], [name_m]Sindri[/name_m]