Something my friend ask me to make for their craft show booth. Can be printed without support and i use a 3/8x1/16 magnet so connect them all together. you can also just glue them together if you want.

Magnet i used:

https://totalelement.com/collections/disc-magnets/products/3-8-x-1-16-inch-neodymium-rare-earth-disc-magnets-n35-100-pack