My thoughts: Cloth sheets, 1/2" PVC frames, + a couple of handfulls of curtain clamps. We have these hooks that are about a 1" circle with a squeze-release clamp at the end that holds up our curtains. Should be easily picked up/moved without wrinkleing, easily stored, transported, & assembled, fairly cheap & easy to construct. Now if I only had some giant pyramids! Subhan