You know that wire mesh you can purchase for repairing panels on car bodies?
(http://i1126.photobucket.com/albums/l603/commission5/barb.jpg)
Slicing strips off it with scissors (tedious yes but hang on!)
(http://i1126.photobucket.com/albums/l603/commission5/barb1-1.jpg)
Wrapping the strips around an appropriate diameter round thing......
and pulling from the end.....
(http://i1126.photobucket.com/albums/l603/commission5/barb1a-1.jpg)
Provides one with pretty good looking, cheap barbed wire.
(http://i1126.photobucket.com/albums/l603/commission5/barb2.jpg)
Sticking matchsticks or other small wooden 'bits' to a base in the shape of 'X's or just as posts to wrap around can add another aesthetic level to your barbed wire emplacements.
Good luck and happy wrapping - yeh, get down, woh.........
Forgive me I don't get out much.
Thank you Sir. Smart and usefull idea.