Lol I found my little sister using this. I played around for it for a sec and it seems pretty useful. I am sure any good artist has more sophisticated software but I was able to throw together some interesting pets with it. I really like the scales/hair brush types. so check it out.
http://disney.go.com/create/apps/digitalpainter/pets theres also other themed workstations.
Also importantly is if you can make a quick drawing of your adopts and add your url too it then share you could get a boost of traffic :)