Things You'll Need
Instructions
Tape one end of the foam backer rod to a table or the floor using masking tape or duct tape. Stretch the backing across the table or floor and tape down the other end. Apply heat lightly to the surface of the rod using a heat gun or hair dryer. This removes the slight curl in the backer board.
Cut the backer into lengths of at least 1 inch and up to 2 inches. The length you use for your darts depends on the type of gun you have. Most Nerf guns use a 1 1/2-inch dart. Try all three lengths mentioned here to see which works best.
Apply a dab of hot glue to one end of the dart using a hot glue gun. Just use enough to cover the top of the dart and do not allow too much of the glue to slide down into the hole. If it does, wipe away the glue and start again.
Place a BB or plastic cap on the glue and secure it in place after it has had a few seconds to cool. Let the dart dry for about 20 minutes.
Repeat this process as necessary to make as many darts as you need.