RCA Secret 2010, London

Spotting an Olafur Eliasson or Grayson Perry from among works by emerging artists or RCA graduates is harder than you might think - or so it would seem from this little selection. But that's exactly the point of the RCA Secret. You won't know who the artworks are by until you buy. So unless your eyes are trained enough to spot a Tracey Emin scribble, or you have intimate knowledge of the weird world of Jake Chapman, you're forced to choose on aesthetic merit alone. And even then, the artists might defy expectations.
Hundreds of artists, designers and illustrators have donated post-card sized artworks to this year's show - an annual tradition that has been running since 1994. Each piece costs a mere £45, but you won't see the name on the back until you've handed over the cash.
Other contributions this year come from the likes of Peter Blake, David Bailey, Ron Arad, Yinka Shonibare and even Manolo Blahnik. To see the full selection, visit the RCA website.
The one-day sale happens on the 20th November at the RCA, with proceeds going towards the RCA's Fine Art department. Postcards will be sold on a first come, first serve basis - so expect a fight.