My step-son went to a friend's birthday at a local shop called Painters Palette where the kids were each given a canvas and paints then led through a painting by a teacher on site. My friend who's daughter it was paid for me to paint so I could have fun while I stayed with the kids. So with the limited palette choice and crappy brushes the kids were given I came up with the painting above in about 30 minutes.
It was pretty cool. All the kid's paintings though similar were each unique. Really fun!