I like the Poison Ivy idea, and my husband has always been a huge fan of Harley Quinn. Harley seems very you; seems like you'd really get into the character, and she's easy to recognize.

Here are some of my favorite anime characters, if you're looking for more ideas:

Cutie Honey (this is the remake, not the original)

Miharu from Girls Bravo -- I really like her, but she might be a little over-the-top silly.

Amuro from Umisho

I watch some pretty silly anime.