To create a lip for the base and lid, you'll sandwich together two plywood rings—one an inch wider than the other. First, to mark circular cuts this large, make a compass from a piece of scrap wood at least 12 inches long. Drive a finishing nail through the center of the strip near one end, for the pivot. To create the radii on the cut list, mark points 7, 9, and 10 inches from the pivot and drill a ⅛-inch hole for a pencil tip at each one. Using the nail to pivot the compass, poke a pencil tip through each radius hole to draw the circles on plywood according to the cut list. To create the goal slots for the base, tick off perimeter points at 12, 4, and 8 o'clock. Draw a line from each tick mark to the center, then make parallel lines 1-inch to either side of those lines to produce 2-inch dividers in the shape of a peace sign.