Gamorrean Guard axe question

[jango5204]

I'm going to start making this axe for my Gaomrrean Guard suit that's currently being made. I was going to use my styrene sheets to make the blade. I want to know if anyone had a good method to copy the texture in the side of the blade. To me it looks similar to the texture of the 300 helmets. Thought about heating a rasp and pushing it into the plastic, but that would look too uniform. I'm afraid I would warp the blade if I heated the plastic.

 

[zorg]

how about denting it before you cut it up or maybe a soldering iron?

 

[jango5204]

Didn't think of the soldering iron, good idea.