Yeah I'm a big GroupX fan,
People have made flash videos for:
-Mario Twins
-dat cerial bawks
-johnny poopoo pants
-bang bang bang
-american idioth
-Shfifty Five
-don't touch that
I think thats all of them for now, I'll have to check on some sites

Most of them are, or were on www.albinoblacksheep.com in the flash files