Using Sweeps for Seamless Backgrounds in Food Photography
You can lay a flexible sheet of plexiglass over a table and curve the back up at an approximate 90 degree angle.
You’ll need some background stands, poles, or other framework and some heavy-duty clamps to attach the plexiglass to the table. Plexiglass sheet prices run about $30 to $40. You can find these sheets at specialty plastics shops or at some big box home improvement stores.