Heres a nice little discovery I made whilst reading up on some Swiss graphic design, specifically Josef Muller-Brockmann.
'50 Years of Helvetica' is a collection of 50x50cm works by 50 artists, each one creating a piece that will be printed just 50 times, to celebrate 50 years of Helvetica. Priced at £50 each. Excellent.
Some great pieces, here are a few of my favourites;

