So, I set about doing it. This is technically my costume from 2011, but I'm sharing it now. Then entire costume took me about 6 weeks to build completely. The total cost ended up being about $50.
Every costume's measurements will be a little bit different obviously, but mine stretched from 7 feet tall to a good 6 feet wide.
This is an entry in the 2012 Epic Costumes Competition, and if you think that this Instructable is awesome, please vote! Thanks!
So, let's get started!
Step 1: Supplies
Trench Coat (light brown or tan)
approx. 20 ft 1/2" PVC Pipe
approx. 17 ft Garden Drainage Pipe (like this)
piece of 1/8" Plywood fit to your back (more on this later)
2 Luggage Straps
16" x 24" (at least) Piece of 1/2" Plywood
VEX Metal Bars (these ones)
At least 26 #8-32 Machine Screws and Nuts
Some Wood Screws (doesn't matter what size)
Tools you need to have:
Big Metal Pot
Band Saw (or a jig saw- just something that can cut inside corners)
Hot Glue + Gun
Waterproof Oven Mitts (like Orcas)
Xacto Knife or Box Cutter
Printer (just black and white is fine)