Go to Wally World and buy a 1/4" foam rubberized mat. The mat is in the rug section, I believe. I bought one for the quilt shop, cut it into thirds and placed it under 3 of the machines setting on those plastic tables. It really cuts down the bouncing. Brother is coming out this fall with a rubberized machine mat just for that purpose, but the Wally World one was only around $9.00 and did 3 machines.