These 12-Year-Old Kids 3D Print a Horrendous Stink Grenade

I remember back when I was a freshman in high school, it seemed as though every other day there would be another stink bomb being set off by a rebellious student. These sulfur smelling devices would send other students running, and if caught detonating one of these bombs, it would result in a certain suspension. I never fully understood why anyone would want to set one of these stink emitting devices off in the confines of a small classroom, but evidently some kids would get a kick out of it.

Undoubtedly these stink bombs were probably purchased from a gag store and then snuck into school in backpacks. Today however, there is a new solution, thanks to three 12-year-old kids who run a video production organization called BananaScience, and a 3D printing website called AMO 3D.

BananaScience has just unveiled a design and a tutorial video for 3D printing your very own stink grenade. The grenade is made up of two 3D printed parts–the body and the “spoon”–and then held together using a simple rubber O-ring and a grenade pin made out of a metal paper clip. The grenade is very easy to print, requiring no support, and can be assembled in a matter of minutes.

While the 3D printed grenade itself is a very innovative design, especially considering that the design was created by middle school students, the concoction that goes into the grenade is equally as important. This concoction made up of diced garlic and onion, mixed with hot water and sulfur powder. This mixture is then set outside to rot for at least a day, but preferably longer. The resulting scent is a mixture of something between an atrocious passing of flatulence and a dead rotting animal carcass; certainly a smell that could cause anyone to gag.

To detonate the 3D printed grenade, the pin is pulled, and while the spoon is held in place, the grenade is thrown at a target. If thrown correctly, the horrendous-smelling solution will land directly next to or on a desired victim.

The design files for this clever, yet quite disturbing creation can be download from Thingiverse free of charge, and then printed on virtually any 3D printer.

What do you think about this creation? Will you be 3D printing your own stink grenade anytime soon? Discuss in the 3D printed stink grenade forum thread on 3DPB.com. Check out the video below.