Quick, before the snow flies!  Take equal parts cornstarch and water, add food colouring, and voilà! Sidewalk paint!

I came across this on Postcards from the Mothership (no idea what I was actually looking for at the time), and simply had to try it. Girl the Elder enjoyed herself, but mommy had a riot.  And talk about non-toxic, they can drink the stuff if they want to – although you may want to curtail this once the paint brushes start picking up bits of gravel.

And, silly rabbit, this trick is not just for kids.  Picture scrawling “just married” or “happy birthday” across someone’s driveway – not to mention the decorating potential for Halloween.  Our the driveway has about the same slant & aspect ratio as a pinball machine. Hmmm…