SIMPLI-MAGIC 79523 Heavy Duty Padded Moving Blankets, Black/Orange, 72” x 80”, 12 Pack

Much better is the blankets, as others suggested. I move a lot, so its easiest for me to repurpose them into my little PVC studio. A common suggestion I see is these from harbor freight, which have grommets built in. At $14 each is a little pricey though. Or I used these from Amazon, which come to about $7 each. I just sewed several 2inch pieces of velcro along the top edge to wrap around my PVC frame and hangs down. Works great! And I have pleanty to use for double up, and of course moving. Mind you, this is the cheapest starter solution. They arent designed for trapping sound waves like true panels, but they certainly work well for the price.