Yeah, it would be cool if you had all the characters. I guess my boyfriend used to have these when he was little. He was super excited when I showed them to him.
If I can remove enough webs out of the way to remember, I seem to recall that they came with the TMNT cards. A small part of me is saying that I got at least one of them when I got the Turtle Van and a case of Ooze 8)