I didn't see ones I liked and remembered a shop on Etsy called Flora's Findings that was so helpful to me months before regarding shipping insurance.
Flora literally has hundreds of glass cabochon cameos in all sorts of themes that she makes. She offers setting frames for them separately that you glue the cabochon into.
I only needed four maybe, six. I couldn't decide what to get and ended up with ten!
I went with two ships, four mermaids, and four lighthouses.
close up of the setting frames.
Glue a good size magnet on the back using glue suitable for metals, and viola! Your magnet board or refrigerator will have a mini makeover.
I like the ships the best. What ones are your favorite?