Step 1: Things You Need:
You will need a nerf gun, paper clips, pliers, scissors and a nerf dart.
Step 2: Step 2!
Bend the paper clips like this with the pliers.
Step 3: Putting It Together
Duct tape the paper clips together.
Step 4: The Dart
Pull the top of you nerf dart out.
Step 5: Putting 3 and 4 Together
Put the grapple part in the dart and duct tape it.
Step 6: Now Shoot!
It's done you can have 3 or 4 paper clips but don't shoot it at anyone it might hurt, enjoy.