Spider-Woman II
Spider-Woman II first appeared in the Secret Wars mini-series, where her costume inspired Spider-Man's black costume. She was a member of the West Coast Avengers for years, but lately is only occasionally seen in the comics.
I figured I was safe to make a Spider-Woman II custom - I had an extra Venom body to use, and she's not a well-known character. The odds of her being made into a Minimate seemed low.
So I was wrong.