This is a very easy way to make some convincing rusted looking barbed wire to enhance your props or costume and the best part is that it’s safe and inexpensive.
This prop does not involve the use of a papier mache (gasp!) but it does make a nice enhancement to your papier mache props.
The Faux Barbed Wire is made from twine, craft foam and black latex paint.
Tutorial can be found here.