smokers

cardboard cold smoker, tallow suet etc
http://2footalligator.blogspot.co.nz/2010_10_01_archive.html

biscuit tin smoker http://www.bushcraftuk.com/forum/showthread.php?t=22732

Plant pot smoker
http://www.ntscblog.com/archives/2005_07_01_ntsc_archive.html,
http://www.bbq-brethren.com/forum/showthread.php?t=118698