I ran across this very cool font on the Behance Network a couple weeks ago. It caught my eye again today, and I started to read the description and was surprised to learn that it was created with FontStruct, a free online type design tool! The font, Selknam, is the work of Chilean designer JuanPablo Meza Recabarren. His inspiration was the Selk'nam or Onas, an indigenous people from Tierra del Fuego (now extinct) and their initiatory rites for adolescents. I'm not sure from the description (my Spanish is not that good) whether the type design is based on tatoos or on something more subtle from the initiatory rites themselves. In any case, it's an intriguing design, and makes me want to experiment with FontStruct! For more samples of Selknam and info (in Spanish), please visit: http://jpmezarecabarren.wordpress.com/  For more information about FontStruct and examples of what it can do, please visit: http://fontstruct.fontshop.com/