Cat Magnet (Fridge magnet)
thingiverse
There's a gap inside that measures up to some Neodymium magnets I had on hand. Double-check if the gap will fit snugly, and time your pause in the print just right. I've found that a dab of super glue helps keep things in place - metal fan shroud + magnet = ruined print. Also, make sure the magnet is strong enough for the job; you might need to lower the hole slightly to get it just right. If the gap doesn't fit, I've made my Tinkercad file public: https://www.tinkercad.com/things/1y3r5t6n8u
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