Another pinner says: Mess Free Finger Painting! What an awesome idea! Paint in a ziploc bag taped over a piece of paper. Of course we'll have to REALLY finger paint sometimes, too, since getting messy is half the fun.
Don't want them sucking up anything, but this one prevents that by putting the ink/paint on the paper/canvas and blowing! Nice :) "India Ink Art For Kids - Monochromatic homemade abstracts-- love this idea!