Battery Toroidal Desk Fan
thingiverse
This is based on https://www.thingiverse.com/thing:6089081 but adapted to use motors I had and also to include a battery box to hold 4 AA batteries. You need https://www.amazon.co.uk/Sntieecr-Mini-Generator-Motors-3V-12V-DC-Motor-Generator-Educational-Experiment/dp/B0922N8MCR https://www.amazon.co.uk/UMTMedia%C2%AE-Piece-Round-Rocker-Switches/dp/B09KTM2BGV/ for the motor and switch.
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