This is a very DANGEROUS weapon!!!!! 
well, i couldn't help it.  wrist rocket, indeed!  
 
 my friend's young adult children launched a balloon at their uncle's pride and joy vehicle.  he's an ordained minister and i'm told there was quite a "come-to-jesus meeting" over the vehicle's caved in door panel.  
 
 and the distance was 50 +/- yards.
so yeah, think baseball-size/dense object, horizontally - WOW!  bring 'em on  
 
 bsmith