The Royal Mint, responsible for the management of the monies created for the Royal Crown, held a competition in 2005 where they had received 4,000 unique entries to redesign their coins.
The winner, Matthew Dent – graphic designer now based in London, had designed each coin in such a way that when lined up properly (pictured) the coins would display the Royal Arms.
Brilliant.
I also appreciate the tag-line on their front page: "Your Change is Changing".
(Source: The New Designs Revealed)
[Via Coudal Partners, Jason Kottke, and We Made This]