There's a guy from CA that posts on various gun forums and he has turned a 10/22 into just about every imaginable assault rifle, it's simultaneously amusing/sad. Amusing that someone would pump that much into dozens of 10/22's, and sad that in CA, a 10/22 is as close as you will ever get to those rifles.

I think the guys screen name is something like Defcon or similar, a search should bring it up.