Sharkproject: Fin

"You have just finned a shark."

The Sharkproject is an initiative to raise awareness about the threat of shark extinction, centered on “finning” – a practice in which the shark is caught, their fins cut off and the rest of the animal thrown back to the sea. This mailing is printed on rough paper similar to a shark’s skin and tells the recipient where to cut the envelope open, revealing a bloody shark fin stump.

(Via)