I use Velcro strips about six inches long to attach VCRs to AV carts. I cut the strips (stuck face-to-face) as long as the VCR case allows. I take off one of the backing strips and carefully attach it to the bottom of the VCR, being careful not to cover any vents. Then I take the other strip off and carefully place the VCR on the AV cart where I want it. The Velcro holds the VCR in place. We haven't had one bounce off a cart since we have been doing this. You do have to pry the VCR off the cart if you want to move it once you get it placed!