Rongorongo is a system of glyphs discovered in the 19th century on Easter Island that appears to be writing or proto-writing. Numerous attempts at decipherment have been made, none successfully. Although some calendrical and what might prove to be genealogical information has been identified, not even these glyphs can actually be read. If rongorongo does prove to be writing, it would be one of very few independent inventions of writing in human history.
rongorongo.ttf is a free for personal use, is an amateur design =)
my site: http://truefonts.blogspot.com
direct link to the font http://truefonts.blogspot.com/2012/10/rongorongottf.html