Retractable Grappling Hook Launcher : 6 Steps - Instructables

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

Always wanted a working Batman (1989) grapnel gun prop. So I designed one, completely with CO2 powered hook launcher! Does it actually work? Guess we'll find out soon enough! : r/geek

Grapple Gun, The Batman Universe Wiki

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

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

Retractable Grappling Hook Launcher : 6 Steps - Instructables

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

Mountain Climbing Carabiner Grappling Hook Launcher Gravity Falls Survival Claws

D.I.Y Grappling Hook : 6 Steps (with Pictures) - Instructables

What's the closest thing to Batman's grapple gun available in real life? - Quora

4 Ways to Make a Grappling Hook - wikiHow

Make a Grappling Hook : 4 Steps (with Pictures) - Instructables

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

4 Ways to Make a Grappling Hook - wikiHow