Now way back in 2007, I bought a heap of yarn on closeout, because the colours were so pretty and, well... YARN.
And some of that yarn is still kicking around my stash. So, fortunately, I was able to just start knitting that night. A few days later... viola! Stripey self-barfing monster!
I don't have any high-action hurling shots, and I can't take any, because this dude is now hanging out at the Utah State Fair. Basically, you toss it around a little, get it really dizzy, and then it barfs itself out to a new colour.