[Dragonslayero]

I just use the FW razorwire no matter what other stuff I should get my hands on.
As far as I know you get enough wire out of that sheet to cover most of your ideas.
Just curl it around a pencil...one or more depending on how big you want the "rolls" look like.
Be careful about twisting the wire before putting it on the pencil... it only makes it harder to coil neatly...