ORIGINAL: davidmil
How about just doing a tie dye job on it sparingly. You know, just a couple sunburst effect here and there with some green, gray, black, brow. It would probably really blend you better than real camo. I'd try one spot or two,say like on the back since it's against the tree anyway. Just mix up a gallon of each color and play. Just use some big rubber bands,(or since you're cheap string). Grab a glob of fabric and shape it into a pointed cone, tie at eh bottom and maybe another time or two up toward the tip(depending on how big a glob). Stick in the dye solution. Stick the adjecnt point into another color, the next one into another etc. You really would end up with camo breaking your outline You could even wait until you''ve rinsed and it's dry and then do it again with some overlapping colors for more irregularity. it could be cool. If you make an nice point spear with the fabric it'll be a more uniform splotch. If you pull more fabric up on one side through the string and form like a bubble or bulge you'll get an irregular shape. Your imagination is the limit.
Did I see you at woodstock?