I saw this idea over at Shannon's Tot School and, since our girls have had similar interests in the past, thought I'd give it a try.
I mixed up a double batch (2 cups water, 2 1/2 cups cornstarch, and a few drops of dish soap), then separated it into the our craft muffin tin. Using our 8 colors of food coloring, I was able to make 12 different colors for the kiddos to paint with (one I left white).
It was so pretty! I found some of my less favored paint brushes and let the kiddos have at it.
"A" told me this was a fish and the spots above it were the bubbles. I love that he's started to create and not just scribble!
"N", who I thought would love this, since she loves all things art (as long as it's open-ended), lasted 10 minutes (maybe). Not a big hit with her.
However, "J" loved it! We were outside for well over an hour and she was constantly painting - though not always the sidewalk! After washing she had some color left on her legs, but it only lasted a day or two. And most importantly, she had fun!
Overall, we will definitely do this again, if only for "J"! And maybe next time I'll bring out some paper. The texture of the paint when it dried was chalky and that would be fun to feel and rub into paper.
I'm not sure how it washed off. We went out of town the next day and apparently it rained A LOT during the 5 days we were gone. What I do know, is that there was no sign of paint on the sidewalk (or children's legs) when we got home.