Traps for coins of any size, from any country! Did you lose a bet? Pay them back with a coin they can never use. Or, did you win a bet? Immortalize your winnings in this trophy bank. Also good for stocking stuffers, little presents, and "first 3D print" jobs to introduce people to 3D printing. The customizer includes pre-loaded diameters for all major US coins and the top 10 world currencies, as well as the option for entering coin diameters manually. The included STL file includes the entire US cointrap set. MakerHome, Day 96: http://makerhome.blogspot.com/2013/12/day-96-customizable-coin-traps.htmlWorks well with .2mm layer height. Insert the coin about 50% of the way through the printing job. If you're brave, you can do this without pausing; watch the pattern that the print head is making for a few cycles before attempting this! Be careful not to let the coin extend into the nozzle area, as this could seriously damage your machine. If you want to be safe then "pause" to insert the coin.