Manchester Confidental postedd a rather creative April Fool's Day article called Squid ink is the new Garra fish. Garra is the genus of fish, sometimes called doctor fish, that will nibble all the dead skin off your toes if you go to a fancy spa. That's real.

This is not:
The squids, which are sourced from off the west coast of Indonesia, have been found to produce a rare ink that stains even the fairest of skin a beautiful olive colour when applied from precisely 23cm away.
But it's pretty funny.
The beautician, or Squidologist as they are aptly named, removes the squid fresh from a tank and entices it to produce the formula or ‘Ink’ using a miniature tickle stick. The pressure at which the ink is released enables it to spray an even tan onto the client.