Next time you're cashed up, shroomed out, and wandering the streets of Amsterdam you should wander over to stay at one of the Lute Suites, designed by Marcel Wanders. From 275 euros a night - not bad for what you get...
Amsteldijk Zuid 54-58 1184 VD Ouderkerk a/d Amstel T +31(0)20 47 22 462 F +31(0)20 47 22 463 firstname.lastname@example.org
Hotel Des Arts is another hotel which has let artists decorate the rooms (I should say artists have let the hotel have their work on the walls). Some of the rooms look great. It's pretty cheap, too - for the U.S. at least. Hotel Fox looks way less feral though. I'm big on non-feral at the moment. Link
Background for those who aren't in the know - Shephard Fairey, the artist/designer started the whole thing by creating an Anti Brand called Obey which sold nothing - and then sold out by starting a real brand which sells t shirts and other schwag.
Wandering around Tokyo you could be excused if you weren't looking at the ground much. If you had cast your gaze towards the pavement you would have seen some of the most beautiful manhole covers in the world.