1. Cut a piece of duct tape that’s as long as your hair.
2. Hold it vertically and fold it in half, left to right.
3. Now cut very small strips of duct tape. You can use as many as you’d like (the picture shows two).
4. Push the small strips partway through the end of the bobby pin. Fold them over the bobby pin and tape them to the duct tape on the other side.
5. To put your extensions in your hair, slide the bobby pin under your hair.