jackc, go to your profile and enable your BBCode, then your quotes, etc. will work.
We use parachute bags and duffles for our carport coverings, camo netting, bedding and such. Some of them were free because MyLarry had them issued to him at one of his commands, and oh, the extras came home too after the decomm, but you can find them through surplus if you look and wait for the sales.
Yes, we already had our duffle bags too from the Navy. Larry even found one on I-15, with two really nice blankets in it. Literally fell off a truck. Someone will be ticked off.
For our carport poles, we roll them into a burrito made of billboard vinyl, which them becomes our base floor of the shade shelter.
Some sunshine, some dust, a little paint and a tutu. Yeah.