The RC Color Bug is one cool idea (and one we used to rig up ourselves with remote controlled cars, markers and rubber bands). This lady-bug shaped toy holds markers point down so kids can draw by steering the bug with a button-operated remote. With a little work, we could probably adapt the remote to work with ability switches used by many kids with physical disabilities. At the same time, most kids would find this a fun way to play and draw, making it a good example of universal design.