The folks at Pictures on Walls - they're the go-to-guys for Banksy's work, and put on Santa's Ghetto each year - are having an open-weekend at their print studio in Shoreditch.

They're having a lottery where four people will win an edition of Banksy's 'Very Little Helps' print, and the next hundred get first refusal on buying a copy. Which is gonna guarantee queues round the block, particularly with the tickets just a quid each, and proceeds going to Sightsavers International.

We'd be far more chuffed to get one of Antony Micallef's prints though. Lovemaker (above) and Bethlehem (below) are both up for grabs in the same way as Banksy's. The prints were created from originals painted by Micallef after last year's Santa's Ghetto in Jerusalem. Banksy might drum up the headlines, but Micallef is the man. You can pick up a tasty book of his stuff over at Lazarides.

There's going to be a stack of other new work, and there was talks of tours round their studio too. It all happens from 11am to 7pm on Saturday 6 and Sunday 7 December at the POW Studio, 16 Willow Street, London EC2A 4BH.

See you in the queue.