I saw one on face book the other day made from a ironing cart (probably the wrong word) you set it near your ironing board to hang clothes on when ironing. Anyway the lady used that straddling the back of her sewing table then used bungee cords attached to the clamps used
to hold backing to the table for basting. The clamps have holes in the handles. Someone suggested that all was available at of course WalMart. Hope this helps.