ALRIGHT.... before I get bashed for posting this, and have people say you get what you pay for, I figured I'd share this link. I do a lot of projects with stuff from army surplus stores. I found this snatch strap that sells for 25cents per foot. Claims it's military issued stuff so I would imagine it would be SOMEWHAT strong. At that price, I suppose if it broke, it wouldnt be a biggie. Anywho, here it is.
Nylon Tow Strap By the Foot
Freakin cool stuff on this website.