As long as you don't mind someone mid-twenties looking, John Dee from Makai Ouji comes to mind. He's a manga only character so coloring is needed if you don't want black and white. But he wears snazzy vests and bow ties and definitely has a whimsical sort of look to him

http://imgur.com/a/aP3py

I was actually planning on using him as a PB for an OC and it didn't pan out. These are my bases! They just need coloring/resizing if you were interested