Wanted to post this here. It's from some blog a year ago I don't know: photo-manips by a professional photographer of his kids for his chronically sick mom. He mostly took the kids' silly ideas and recreated them, and I think these are some great ideas for a photo-manip challenge here at SitePoint forums.
http://www.boredpanda.com/creative-kids-photography-jason-lee/ so this is an assembly from the guy's flickr of the most outrageous images.
I've seen those before. Some great photoshopping
Ha! Those are so cool!
Those are good. The kids seem like great actors, too.
The sneeze one might be my favourite