Well here is my first single loop...
22g copper wire on 5/16" dowel 6 loops, 11" long just under 1/2" off dowel drawn to 1/4" and 16" long. Trying to figure out what to do took me about 2 1/2- 3 hours.
Step by Step Wire, Winter 2009 has a very good article on it that explains enough that even I could do it.
