Like my picture here, you can do a demo picture, or upload your own picture. You can do special effects like sepia, or add a spiderweb or an eyeball or blood...
I am the first, and proud to say it, to try out Picnik.
It is probably the most fun I've had creating photos out of photos.
Picnik is cool for all ages, I guarantee you'll have fun with this really cool photo maker.