I used 1 X 4 lumber and C clamps for many years. I glued pieces of cardboard in layers and made a light weight surface for basting once getting on the floor hurt too much. Can you tell I'm a DIY kind of gal?
Anyway, what worked the best was putting tables together and taping the backing down. A thin piece of poster board slid under where I was working protected the tables from pins. Can't use the sprays.