Redneck Outdoor Furniture --- $1 per bench

Here's a quick video on how to make a discarded pallet into a comfy bench.

Actually, if you have a camp where the security is not that great, you could spend an afternoon making a few of these benches and leave them at your camp. If they wound up stolen, all you lost was an afternoon. But, you gained a valuable skill in furniture making...well, sort of.