Singapore has 40 post boxes which are now housing some stunning art as a part of the STAMP Project. There were 1000s of entries, which are all on display at the STAMP exhibition, but only 40 designs were chosen to be put on to the post boxes. It is great when urban art and street art is actually organized like this and accepted by the community. You can view a PDF of the 40 Post Boxes. [via Start Drawing]