Make a Mini Grapple Gun!

How To Make A Mini Grapple Gun - DIY Projects for Teens

Mist8k's Profile - Instructables

You Built What?!: A Compact Mechanical Crossbow With the Precision

Make a Mini Missile Launcher!

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How To Make A Mini Grapple Gun - DIY Projects for Teens

1989 Batman Movie Replica Grappling Gun Available From Sideshow

How To Make A Mini Grapple Gun - DIY Projects for Teens

so did batman have 2 grappling guns? or the one on his leg just to

Detonation Technology - Folding Grappling Hooks

This maker built a working Batman grappling gun in only a year