To make this even more fun, go to you local Post Office and grab up a stack of the LARGE BLANK printable labels for "Click n Ship" that can peel and stick. Each one is a half page of paper 2 per page and can be printed on with most ink jet and laser printers. I find them super to make .22lr targets that are easy to stick and peel to the post board with no tape or staple guns needed. You can also order click n ship lables at uspo online, but they charge you, Post office lobbys there are no charges. to make larger targets, just print the whole page for one target and stick together on the backing board.