In an eBay auction that ends just before lunchtime today (11:18am GMT), one lucky person could snap up a one-off "doodle" that Nick Mason has created and drawn for National Doodle Day. The typically amusing doodle is signed by Nick and hand drawn on an official National Doodle Day card (A5 size, 148mm x 210mm). Click the thumbnail to the right to see it in more detail...

National Doodle Day is a nationwide event in the UK that aims to get the nation doodling and raising money for Epilepsy Action and the Neurofibromatosis Association.

Click here to visit the auction and place your bids for a unique item.

UPDATE: the auction finished with some keen bidding, with the 30 bids placed pushing the final price to £76.