In the 1970s and 1980s, Chicago gangs distributed gang cards to stake their neighbourhood claim. Full gallery available here.
Christian Schallert transformed his tiny 258 square feet apartment into a much more usable space by creating a vast wall of clickable furniture, and a spring-loaded door swings.
Tokyo artist Sagaki Keita creates incredibly detailed illustrations which are almost completely improvised. More of his work can be found on his website.
100 artists from around the world designed credit cards for a Japanese bank and Visa. [more inside]