Dewi creates some of the most amazing, small, ink drawings. He entered these small skull/face pieces as well as some tiny, moveable skeletons. His work can be seen on the 365 Mail Art blog,here.
NOTICE: in the previous post, errors! The deadline is 28 May 2013. I had inadvertently put the deadline in the past. To those who noticed, thanks for letting me know, so that I could make the correction.