I try to make one of the umpteen characters I have flitting through my head on a regular basis. They tend to vary wildly from character to character, but they have a few things in common. For example, they never have too muscular a physique (big muscles creep me out). The women are never too sexy or too ugy, more an avergely-attractive woman, and the men are never girly looking or overly-masculine. Most of the time they wear bright white clothes, especially if they're a villainous character (villains in white = great costume).