pzrwest:

Agreed, I'd not waste it on Aber fenders, but for cheaper replicas, sure!

Just put the metal skirt atop a piece of corrugated cardboard box, or better yet, a piece of metal with a larger hole under your impact point, and punch holes in it with the appropriate diameter piece of wire with a a ragged point ground/filed on it. Why ragged? So you get an odd tear to the metal. Also twist the wire slightly as you push it through, remember that bullets are spinning as they punch through.

For styrene punctures/dents, ~don't~ use your soldering iron directly. Use a candle to heat a piece of wire or rod, and use that, and leave it in the hole until its cooled. You don't want the warm tip dragging styrene back out, eh? I often use this for making joints in resin figures, as the fine resin remains are NOT something you want to handle. Works a charm, and also holds the wire joint solid.