Your favorite color of duct tape
Scissors or an Exacto Knife
Step 2: Step 2
Fold the piece in half but leave a little piece of sticky side still free. Then fold it like you are making a bracelet.
Step 3: Step 3
Fold the top in half towards you and then the sides down. Do the same with the bottom half. Cut a small piece of tape and wrap it around the middle.
Step 4: Step 4
Take another small piece like before and wrap it around the top half of the bobby pin.