I honestly intend to name my cat Shigeru and call it Shiggy. As for Nintendo character names, I think Saria, Mario, Kirby, Zelda, and Professor E. Gadds aren't bad. They're normal enough not to be picked on, but they're still Ninty character names. Yeah, I'm kidding about the last one.
Samus Aran, Tetra, Malon, and Xavier are all cool names, but I wouldn't name my kids that. Except maybe Xavier, but that isn't a Nintendo name anyway. . .