The Secret Decoder Ring from ThinkGeek is a fun way to hide your messages from prying eyes and communicate with friends.
The ring was designed according to ThinkGeek because "Big Brother is watching. Listening. Reading your notes. What can you do? The tinfoil hat only protects your brain from the aliens."
The ring has a base topped by another ring with a cutout that reveals numbers to match up with letters. Made of stainless steel, the ring comes in both men and women's ring sizes, so secret messaging is available to members of both sexes!
The Secret Decoder Ring is the perfect way to send your partner in crime a message without worrying about those pesky aliens looking over your shoulder.