Assault Trombone

[pwhole]

Well I've always wanted one...

http://www.neatorama.com/2017/03/07/Crafty-Father-And-Son-Build-An-Assault-Trombone/

 

[martinb]

 

[ZombieCake]

Could it be used for digging?  Walls of Jericho legends and all that.  Certainly save effort whacking things with a hammer 

 

[nickwilliams]

https://www.youtube.com/watch?v=IyAyd4WnvhU

 

[Pitlamp]

Hm - I can think of one or two upwards  boulder chokes where one of those gizmos might be useful . . . . . .    :-\