Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:6329971.

I found this image online and wanted to make a countdown board with magnetic ornaments to countdown to christmas for my daughter. I had 6mm x 3mm magnets that worked well to use to stick the board to the fridge it uses 4 magnets on the board. I made numbered ornaments from 1-27 so far. So 31 total magents needed. I added a blank number plate if you want to add more or make different numbers. The magnets press fit into the model. If the magnets are hard to press in just hold a lighter to a hole for a couple seconds and then press the magnet into the hole. that worked for me. make sure you put the magnets in the correct way cause I am not sure how to remove them if put in backwards. Confirm magents stick to fridge before pressing into model.