This part turns your empty soda can into a coin bank.
View the instructions for a detailed how-to
If you haven't already, buy yourself a soda can. I prefer buying a drink that is rare/ not always available in your country so you can give your coin bank a more unique look. After you drank all of it up, you're ready for Step 2.
Cut the top of your soda can off, leaving the lid in place. You can use a wire cutter for this, but if you don't want a damaged blade you should consider using one of those cheap box cutters.
Use a rotary tool to sand down all the sharp edges. Believe me, you don't want to cut yourself.
Clean your soda can. You can do this by washing it out with water. Afterwards, use a towel to wipe it dry
Attach your 3d printed part to the lid. Make sure it fits well and it is pressed down even. Now you've got a cool, upcycled and reusable coin bank.