The beauty of Water Wow is that it’s reusable. Or, maybe the beauty of it is that there are several different versions available, so kids can pick their favorite characters and discover the hidden pictures with the swipe of a brush, and then wait a few minutes for it to air dry before doing it again. Or, maybe it’s that if your kids are painting with water, it doesn’t matter if they try to decorate the tray table or the car seat.

About $7 most Target, Jo-Ann Fabrics, and Michaels stores, and online at Amazon.com.