You will need:
*A foam board that you can buy at the dollar store (I only needed one because my board is small)
*Spray adhesive
*Glue stick
*Scissors or a razor blade for cutting the rounds
*A plate or cake pan to trace your rounds as big as you want your board to be
*A pencil or pen to trace the rounds on your board
*Tin foil to cover your stacked rounds
Start off by tracing 3 rounds (however big that you want them) on a foam board
Use a razor or scissors to cut the traced out rounds
Spray and stack the rounds
Cut a piece of tin foil to cover your stacked rounds (I only needed one piece, but if your board is bigger than 10 inches, you going to need to overlay another piece of tin foil)
Cut the tin foil in a round, with an inch bigger than the board. Glue the side of the board that is going to be facing up, make sure you smooth out any bumps and place tin foil covered side down
Glue the strips of tin foil and fold the tin foil along the cake board
Finished cake board. Next you cover your board in fondant and add a ribbon for a border. Easy peasy lemon squeezy.. and cheap!