Job it is funny you ask this b/c I started one out of a failed project that I savaged, my hammock thong.
I may finish it tonight a work. At first my plan was to use a hiking pole, but settle on a 1" dowel until I can work out some details. Realize that places to hang one are very limited. I was thinking that at some shelters you could hang from the rafters. Finding a good limb is harder than finding a good limb for a bear rope. It's not something I would take hiking, but I love novelties.