I started with 3 yards of ripstop nylon from Walmart. But my hemming took 4 inches of the length, and I'm 6'1". If it's too small for me I'll give it to my 4 y/o son.
Here are a couple of pics. One of it all hemmed up, and the other the ends gathered. I'm hoping to get some webbing this weekend and find a local source for cinch buckles. Any idea what kind of store to start with?
While I'm at it, here is a set of ranger beads I made today.