Stephen Colbert's Formula 4 Your Eyes Only: Invisible Spy Ink (For Women)

Stephen Colbert's Formula 4 Your Eyes Only: Invisible Spy Ink is a sophisticated invisible ink created in the laboratories of MI6 by Sir Mansfield Cumming.

Commercial Use
It was discovered that a fresh new batch is necessary for each letter, making a very cumbersome process that could take several days just to write a one page letter. Other usages includes keeping diaries, making shopping lists, and printing a daily newspaper.

To facilitate the usage of Stephen Colbert's Formula 4 Your Eyes Only the special ink comes in printer cartridges fully loaded with boner toner.

Formula For Your Eyes Only, compatible with HP, Cannon and Kodak printers. Sorry, Epson, you just don’t do it for me.