Magnetic Slug
thingiverse
This is an adorable little critter that 8ran has created. It only needs a magnetic personality so it can stick to the fridge. My TinkerCAD file can be found here: https://www.tinkercad.com/things/cBD2I7B0AEe-slug. The magnets used are 6x2mm in size and can be purchased on eBay at this link: https://www.ebay.com.au/itm/N35-50-100Pcs-Strong-Block-Ring-Round-Rare-Earth-NdFeB-Neodymium-Fridge-Magnets/142658146914?ssPageName=STRK%3AMEBIDX%3AIT&var=441639981019&_trksid=p2057872.m2749.l2649. A small amount of SuperGlue is applied to the hole, the magnet is pressed in and allowed to dry. The magnet hole may be slightly large, but the slug can be scaled down if necessary. The design has been updated with a new mod available here: https://www.thingiverse.com/thing:2867299
With this file you will be able to print Magnetic Slug with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Magnetic Slug.