Hi,
Here's a small recommendation about what to do with used beer bottle caps.
It's quite simple.
When uncapping, put a 2 Euro coin on top of the cap.
Uncapping will give a nice unfolded cap !
Buy some small magnets.
Insert the magnet inside the cap.
Stick the cap onto the fridge door. That's it.

The result ?
A wonderful decorated fridge door !
Be aware !!!!! This is not my fridge.

Cheers,
Filip

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