I was struggling because my Addi(s) wouldn't clamp to my plastic tray table because of the beveled edges, so I went to the thrift store near my house to see what I could find. I ran across a Show King foldable table that plugs in and has three outlets! It's a little smaller than what I wanted, but otherwise it's PERFECT! My Addi clamps to it as does my yarn winder. I can plug in my knitting machine adapter AND a light! I'm happy dancing all over the place!