I'll affix enough neodymium-52 magnets to make your heart rock securely stick to the fridge.
Neodymium-52 magnets are industrial strength, as strong as you can get. Don't touch these to screens, credit cards, or the pacemakers of anyone you like.*
Each $2 purchase will turn one heart rock into a magnet. If you order multiple hearts, email me to designate which one you want made into a magnet.
The pictures are examples.
If you want to do this yourself, I recommend using e6000 glue. Apply a small drop to the stone, let the glue sit for a minute or two so it begins to get tacky, then press down and hold the magnet in place for 30-seconds.
*I do not endorse using magnets as weapons. I do think the aforementioned quip is a pretty good, witty joke worth sharing.