Plastic bottle or milk caps
Punch (or cut) the papers into random shapes and sizes. Make sure they will fit on top of the bottle caps.
Apply a coat of Mod Podge to the top of the bottle cap and to the back of a paper punch. Position the paper onto the bottle cap, smooth with your fingers and top-coat with more Mod Podge.
Keep making bottle caps that match. Allow to dry and start making matches.
PROJECT TIP: Store the bottle cap game in an old sippy cup or cleaned out peanut butter jar.