I made one from a metal coat hanger and, of course, scraps. I primarily use it on my serger, but collects from many points. Made a small bag through which the unbended coat hanger goes, holding it in front of the base plate of the serger. I bent the ends to fit around the back legs of the serger. Works great and recycled a piece of fabric!
Guess you could do the same thing for a table using elastic/bias tape around the machine body.
Velcro would hold it to the underside/edge of a table....dunno, just a thought.