Gather your supplies.
Take the shoes and place them on the cardboard.
Cut them out.
Wrap in duct tape.
Take a piece of duct tape. Rip or cut in half. Lay them over each other.
Then cut in half.
Stick them together at the tips. Then stick to the flip flop. Then with the ends far apart, stick them to the flip flop.
Now you have one done! Now reapeat these steps.