The Royal Mint is currently running a design competition that's open to everyone in the UK.
The design competition involves designing the new 50p piece that celebrates the forthcoming 2012 London Olympic and Paralympic Games. The design competition is open to all UK residents aged 13+, 27 designs will be chosen - one for each of the sports at the Olympic and Paralympic Games.
The Winners of the design competition will see their creative work on the backs of 50p pieces which will be used throughout the UK. They will also receive a prize of £1000 and get to watch their design being added to the coins in The Royal Mint.
Designs that are entered will be judged on the originality and creativity of their design, also how well their design communicates the sport and how the design will work on the coin itself.
The judging panel will be made up of independent experts, and representatives of the Royal Mint, London 2012 and the International Olympic Committee.
So, you have 100 days from now and you need to get your design in by 24th April 2009.
The official competition website Royal Mint 50p Design Competition for London 2012 has more information.