Retractable Grappling Hook Launcher : 6 Steps - Instructables

Make a Mini Grapple Gun! : 4 Steps - Instructables

Grappling Hook Launcher : 15 Steps (with Pictures) - Instructables

Grappling Hook Launcher : 15 Steps (with Pictures) - Instructables

Retractable Grappling Hook Launcher : 6 Steps - Instructables

Grappling Hook Launcher : 15 Steps (with Pictures) - Instructables

Mini Grappling Hook : 7 Steps - Instructables

Office Supplies Grappling Gun : 6 Steps (with Pictures) - Instructables

How To Make A Grappling Hook Launcher That's Less Good Than Batman's, Mark 1

Retractable Grappling Hook Launcher : 6 Steps - Instructables

Grappling hook ideas. DIY or off the shelf