Piecing together a Leatherface Costume.

Hey everyone,

I am looking for some help with my Leatherface Costume. So far i have my mask, Apron, shirt, pants, and boots. The two things i am running into problems with are the Leather Arm guards/bands on Leatherface's forearms and his Chainsaw. I just want to say before people start throwing out suggestions that please do not suggest those crappy plastic chainsaws that they sell for like $20. I'm not trying to toot my own horn but i have sank a lot of money, time and patience into this costume to try and make this as acurate to the movie as possible so i'm not gonna cheese it up by cutting corners. I am not so worried about the Chainsaw in all honesty because i can always rent one if need be. My big dilema are these arm bands. I have no idea what they are or what purpose they serve? All i know is that they are a key element. Well, not a key element but i'd like to have them for the costume.

Thanks in advance for any and all help,

Nick