In order to make a wallet with duct tape, you will need the following: duct tape, scissors, a ruler, a pen, plastic, credit card, and a smooth surface. Cut a strip or duct tape 8" long. Place it on a flat surface, with the silver side facing up. Cut another piece. Attach it to the first piece, laying it down at half the width of the first piece. Fold it over. Try to avoid making bubbles. Now, make a sheet by cutting 8 strips and attaching them together in the same manner. With a ruler, measure it. Cut away the excess. Set it aside. Repeat this process with 4" strips. Make several of these. These will be your credit card slots. Cut a piece of plastic to the size of your wallet. This will allow for your ID to show. Use the credit card for reference, in order to make sure that your slots will fit a card. Attach the slots to the wallet. Reinforce it with duct tape at the fold. Make a trim for it with duct tape.