You can now print more coins for the famous toy cash register.
My kid lost a few coins and was very happy to get a personalized coin with a Letter :)
Customize to select a letter you like and print the coin.

To do that, please install OpenSCAD on your own computer and follow the customizing instructions on this thing page.
Alternatively, you can also use the Thingiverse customizer.

Note: I originally uploaded this to Thingiverse.

If you could take a picture of an actual print, please "comment" and attach the picture. - I am curious to see your uses in the wild!

Have fun!