Board games often come with die-cut punchboards full of interesting shaped holes. Once the game pieces have been ‘punched’ the remaining cardboard is thrown away.
A while ago, I gave my teacher girlfriend a bunch of (punched) countersheets/punch boards so she could use them in her classroom. They were a big hit as drawing templates.
Here are some pics to show them in action

If you have any, please pass them onto kids.
Extra points if you can guess the four games that supplied the punch boards shown in the pictures above. One game is very easy to guess, the others will be tough to identify.
Tim
23rd March 2017