Coin/Key for European shopping cart. Form factor between 50 cent and 1 euro coin, compatible with most carts. Easy to put on a keychain and you can pull it out when the cart is unlocked with most systems.

Just a simple and effective design.

The ones in the picture have been printed super fast with a 0.8mm nozzle.

Update 10-04-2024

Check out the Next Generation of shopping cart coins as well in the new version!

https://www.printables.com/model/785080 

Update 27-06-2023

Check out the USA (US quarter) version:

https://www.printables.com/model/514395

Check out the UK (Pound) version:

https://www.printables.com/model/514397

Update 15-08-2023

Here are also references to the 1 euro and 2 euro coin. These have similar functionality, but without the extra attachment.

https://www.printables.com/model/485369 → 1 Euro dummy coin

https://www.printables.com/model/485368 → 2 Euro dummy coin