However, the 3D Coin Art puzzle isn’t designed for any ‘special’ or newly mint coins. Instead it’s designed for just any, everyday pennies, dimes and nickels. The one we was sent comes in the shape of a flag and it holds $25 worth of coins in the form of 50 dimes, 318 nickels and 410 pennies. The instructional packet that comes with the set explains which order to add coins in, and how to clean your coins to make them as shiny as possible for the display.