Take the kids outside with some ink pads and get them to fingerprint your paper in a variety of colors. Let the ink dry.
Draw shapes on the prints with a permanent marker.
Spread an even layer of Mod Podge on the bottom of a cabochon, then press it over one of the drawings. Do this for as many as you’d like, then let them dry.
Cut around the cabochon’s base.
Put a small dollop of Mod Podge on the back of the paper, then stick the magnet to it. Let that dry.
You're done! Stick these magnets anywhere in your house that needs a little color.