How to Lay a Copper Penny Tile Floor tip: Since all of the pennies are the same thickness get a roll of contact paper and stick the pennies to that in 2 foot sections. Then you can spread your adhesive to the subfloor, lay the sheets down contact paper side up. After the adhesive has cured peel up the contact paper. It is much quicker than trying to adhere each tile/penny to the floor. Also you can do your layout on a table and save on the back pain.