The Knockout is a multi-tool we can get behind. This Canadian contraption can turn any bottle into a beer shotgun, water pipe, gravity pipe and beer gravity pipe (see below, left).



To make a beer shotgun, stick the gadget into the mouth of a beer bottle, flip the whole thing over and chug. To make a gravity pipe, attach the Knockout to a half-full bottle, then flip the bottle over and light the one-hit bowl as the liquid pours out. Make a water pipe by removing the Knockout’s one-way valve, sticking it into a half-full bottle and toking. Make another type of gravity pipe by removing the bottom half of the Knockout, attaching it to a bottle, blocking the mouthpiece and lifting it up as you light the bowl.

The Knockout is made of food-grade silicone and stainless steel and is dishwasher safe. Its airtight seal makes it completely leak-proof.

But it for $30 from the Knockout online store.

(via Cool Material)

Alyson Sheppard is a hangover specialist at Her work has appeared in Popular Mechanics, Mental Floss, McSweeney’s, National Geographic Adventure, Jezebel, and more. Follow her on Twitter: @amshep