http://www.skdtac.com/Specialized-Tactical-Systems-Muzzle-Thumper-p/sts.101.htm

Came across this in an email from SKD this morning and caught my eye. I thought it was a joke product, like they offer every so often.  Can't find the link to them anymore though.  I thought they had a bag of dildos one time or something like that. 

The disclaimer was even better:

The Muzzle Thumper device is a specialized tool that will deflate tires rapidly and quietly. Serious and life-threatening injury may result if improperly used. By checking this box, I acknowledge the serious risks inherent to this product, accepts full responsibility for any and all use and consequences, and hereby releases SKD Tactical and Specialized Tactical Systems from any kind and all manner of actions and claims, that result or may result from the proper or improper use of the Muzzle Thumper device. This is a big-boy tool... big-boy rules apply.

The disclaimer was even better:

Could I also use it to spear fish?