A YouTube channel, The Q, has created a coin sorting machine from cardboard. All you need to create one for yourself is a cardboard, a sharp knife, and glue. The most essential part is to measure the coins accurately and create holes according to their size. The creator used four different sizes of coins in his coin sorting machine.
Once you have correctly measured the coins, you can cut holes accordingly and attach all the required parts of the cardboard to give it a complete machine form. Watch this video to see how the coin sorting machine was made using cardboard.