I use this to sort my coins so I can quickly get the correct amount for a bus ticket when I go out . The small incision at the bottom of each coin slot allows for one coin at a time to be pulled out.
The scad file is included, so you could easily adapt for coins in different currencies.
Rotate 90 degrees so that the back faces downwards. Printed without supports/rafts with fast print settings on a makerbot 2X in about 4 hours