I'm short on time and not looking to make anything fancy. Right now I plan on getting 3 yards of white blackout cloth (108" x 54"). I don't want to mess around with gromets or ties, I'm thinking cheap and ugly, but want it to stand. My Initial thought is to nail a 2x4x12 (or 16) off the top rail of my swingset and then put legs on this and staple the cloth to the wood (see below). Can anyone thing of anything easier? My wife said to use 5 gallon buckets with posts sticking up in each one and staple the cloth across, but I'm thinking the cloth will sag.