How to do it
- 1
Squeeze two primary paint colors and a dollop of shower gel into a ziploc bag.
- 2
Seal the bag tightly and tape it to a window or smooth wall.
- 3
Have the kid press and squish the bag to mix the colors.
Tips & extensions
Double-bag for extra security. For babies, tape it to the floor or a low surface for easy reach.
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