Frenzied postcard art sale

It's that time of year again - the RCA has rounded up 2,500 established artists and students to design postcard-sized pieces of art. These are currently all on display anonymously, and available for viewing until the end of Friday.

Then the frenzied sale starts at 8am on Saturday, with each postcard costing £40 and all proceeds going to the RCA's student award fund.

Past years have included contributions from Tracey Emin, Sam Taylor-Wood, Peter Blake and David Hockney. The resale of a Damien Hirst postcard from the 2004 show netted its owner £15,600 at Sotheby's this summer.

So for the chance to buy your own mini-masterpiece, register with the college and head down there early on Saturday morning. All postcards are available for viewing online, too.