Why didn't I think of this earlier???

This was a great little pastime for my girlies this weekend...give 'em a pile of shaving cream on the table and let them "fingerpaint" away! Bonus: the shaving cream eventually disappears, easy cleanup and smooth little hands. They loved writing words in the cream, drawing pictures and mostly being able to be free to be messy! Again, I ask...why didn't I think of this years ago??