Keybinding mess and escape sequences.

Designer Felix Grauer came up with the idea of a simple keyring with a LEGO-compatible brick on it. To hang your keys up, simply snap the brick onto a wall-mounted LEGO panel, and you’re set. Make sure to leave them hanging over by one position to make them easy to remove. Not only can you use the blocks to color-code individual keyrings, but you can snap them together to combine rings. - See more at: http://technabob.com/blog/2012/11/24/lego-keyrings/#sthash.uYdzrt9b.dpuf