If you have wide paint chips like I do than you need to trim the chip to make it the width of the post-its.
Fold a small lip on the bottom of the trimmed chip. I made mine about 1/2 inch.
Fold over the top so that is just over laps the lower lip.
Trim the post-its to fit. They need to sit under the lip. Place a stable thru the lip and the sticky part of the post-its. (Know that I think about it, I don't see why it has to be post-its.)
Done. Quick and easy and interesting.
Then the kiddos can decorate it how ever they want. Perfect for the art party.
There are many things I love about this craft. But the two biggest are CHEAP and COLORFUL. My two favorite things.