Rather than posting free patterns here, I've decided to put pattern links on the forum. Just go there and look under "patterns." Many great sites.

Either go here: http://www.southwestwoodcrafts.com/appliedpyrography.htm

or go directly to the forum: http://southwestwoodcrafts.com/forum/

http://www.carvingpatterns.com/projects/burn.htm
http://www.woodburner.com/index.php
http://www.pyrography.co.uk/wpage16.htm

At FDA's request, various screening test kits were seized from Ohio-based
PerkinElmer Life Sciences Inc., after the agency determined the kits were
not manufactured in accordance with its good manufacturing practice
standards. The test kits are used to screen for several genetic diseases in
newborns and hemoglobin and central nervous system diseases in adults, such
as sickle cell anemia and multiple sclerosis.
http://www.fda.gov/bbs/topics/ANSWERS/2004/ANS01278.html