What It Takes to Build a Lego Hobbit [cached version] - How Lego's An Unexpected Gathering was designed from the 2,700 pieces of the modern Lego "system of play", which remains compatible with a brick design that goes back to 1958. Despite worries that the stacking brick system has become less creative, a persistant series of complaints that have spawned their own bingo card, it remains hugely popular, in part through quality control and clever licensing. The Lego Bag-End house also comes in a life size version.
The Warholizer Your picture. Warholed.
Line Rider. It is all downhill.
Tryangle cannot be defined, but it's way fun. Use it to easily create angular art pieces, then share your creation with the teeming masses on the Tryangle Flickr pool.
Murphy's Original Stupid Creatures are more than just sock monkeys. Browse stupid creature history, or make your own.
SleepyGeek has a fun tool that creates montages from Google image search results.