Using websites for two of the hardware or lumber supply stores (examples are 84 Lumber, Ace, Home Depot or Lowes) calculate the cost of the materials below. The materials list is for the secret money box. You should be able to search the lumber prices at two of the 4 sites listed above and then compare the prices to come up with the cheapest total price for each part.

Secret Money Box:
Four Sides: 1"x 4" by 6" long

One Plunger Base: 1"x 6" by 6" long

Two Fronts: 1/8" x 6" by 6" long

One Plunger: 3/8" x 2"  by 4" long

One Pivot Arm: 3/8"x 3/4" by 4" long