Shopping list holder for shopping cart coin slot

thingiverse

This is a custom shopping cart coin slot holder that accepts standard coins, approximately 23mm in diameter, similar in size to the euro coin. To utilize this holder, you'll need to drill out the axle hole to accommodate a suitable replacement axle. For my setup, I've utilized a 2.5mm axle. Additionally, you will require a torsion spring; I created mine by repurposing an old extension spring and unwinding its ends to achieve the optimal length.