I found this through my daily web surfing. I get the whole novelty-joke thing, but geez why the hell would you want a cup that looks dirty all of the time. It’s misleading & a cruel practical joke on your daily life. I’d  find it funny the first few times, but then I would cringe passing by & think “I have to wash that…fuck”. It looks too much like a daily cup of coffee I pour & then spill all over the counter. It would be the “crusty” mug, at the bottom of the sink. Hmm…I think I’ll pass on this idea. The Dirty Mug———> Urban Outfitters.com

UPDATE————->

Just in case you really want to take a dump on this idea, you can get this at Urban too.