[name_m]Otto[/name_m] and [name_m]Milo[/name_m] are my two favorites of your suggestions!
[name_f][/name_f]What do you think of:
[name_f][/name_f][name_m]Carlo[/name_m]
[name_f][/name_f][name_m]Walt[/name_m]
[name_f][/name_f][name_m]Otis[/name_m]
[name_f][/name_f][name_m]Leon[/name_m]