Designer Pablo Matteoda from Argentina has come up with the coolest and possibly deadliest tea infuser ever devised. Simply fill the Sharky Tea Infuser with loose leaf tea, red tea is recommended, and let it float around a cup of hot water. The shark fin on top of the infuser sticks up from the surface as it leaves a trail of blood, er brewed tea in its wake. It appears to only be a design concept for now, but if it ever does go into production, you’re really going to need a bigger cup.