This is what I made this morning.
The left magnet is chipboard gesso'ed and painted black with acrylics, then embellished with a hand painted mod melts rose, green ribbon, orange washi, and a text sticker. Some mini-tinsel in Halloween colors is glued onto the edge.
The right magnet is a skull bead I cut in half and filed down a bit, with a mod melts frame and green chipboard insert, on top of orange polka dot ribbon (with a little glitter) and a black, hand painted chipboard back. I stamped two little debossed stars on each end using my GCD Studios Chip Art Mini Stamps. The white dashes are my beloved gel pen.
When working with chipboard, I find it's best to gesso it before painting so the colors really pop, unless you're working with a very white chipboard. Stamping is easier on bare chipboard than painted (because you can easily wet it for better, deeper impressions) but a sturdy whack with a hammer still gets the job done on dry, painted chipboard. Just be careful; it can crack or crease and you may need to do a little touching up.