I found the link to this site on J. Kaye's Book Blog. I thought it was fun, so I went ahead and Simpsonized myself and my two daughters. In order they are:
me (Kylee) - Sarah-Ellen (my 14 yo) - Reaghan (my 2 yo)
I think they're fairly good likenesses. If you decide to do it and post them on your blog, please post the link in the comments. Enjoy!