INTERNATIONAL ORANGE: The Bridge Re-imagined is an amazing exhibit created by students from "nearly two dozen San Francisco public schools working with SFArtsEd Master Artist and exhibition curator Richard Olsen" on display in 75 galleries around the city. A long, horizontal structure like a bridge is perfect for this type of collaboration, but really any subject matter would work. All you and your little co-artist need are a big sheet of paper, and idea, and an agreement to meet in the middle. A painting of your house could be sweet & poignant, and a drawing of your pet could be hilarious. I think one of the reasons the image above works so well is because of the limited palette. Perhaps you could agree on three colors to use, or just work in black and white?
Have you ever created a work of art with a kid? How did it go? Did either of you throw a tantrum because your artistic vision was compromised, or were you both a joy to work with?