Barbed Wire is a simple little plugin which damages the player when he walks on a cobweb. The amount of damage is customizable in the config.yml file, as well as various other options specified below.
In 1.4 barbed wires can be crafted by using a string, shears and an iron ingot. This is a shapeless recipe, and grants the crafter 16 barbed wires.
In 1.4.2 the command structure changed a bit.
| Command | Permission | Description |
|---|---|---|
| /bw give | bw.give | Gives one barbed wire |
| /bw give <amount> | bw.give | Gives the <amount> specified barbed wires |
| bw.* | Gives a player the rights to every command |
bw.* or bw.give will give a player the possibility of getting a barbed wire by utilizing the /bw give command. OPs will be able to use it anyway.

A friendly soul also made a youtube video showcasing the plugin!
Thanks, eric!