I've just discovered an item in an old Tannen catalog #11 (1975), which describes...
"Something quite new in Cups and Ballss magic. An entirely new and complete routine, a modern version of the famous classic. In place of the usual metal cups, three large felt bags, each a different color, are employed. It is there bags which add novelty and also enable the moves to be so simplified, that VERY LITTLE SKILL is required to do these exceptional "Cups and Balls" effects. The climax, where a glass of liquid is produced, is quite astounding although actually simple for the performer. We supply a complete outfit, which includes three beautifully made bags, each a different colored felt of first quality, four 1" cork balls, glass with a special gimmick to make your liquid production, and complete routine by LEWIS GANSON. The outfit makes a big and colorful show, yet, you can carry it all in your pocket....$15.00 (Page 72)

Has anyone bought one of these, or otherwise seen one.
Aurelius

If memory serves me right, I think this was published in Unconventional magic by Ganson

I had this years ago, it was put out by the Supreme Magic Co in Bideford Devon. Not sure what happened to it but I never used it much, ahh Supreme Magic, those were he days.

I believe Donnie at RNT2 has made this up again. I have a set and they're fun to use.

I have never worked on the routine. It is in Ganson's Unconventional Magic. If I'm not mistaken it was first published in The Gen.

Lynn Castell who was Senor Mardo's ex wife made up a set of bags for this effect. I handled them once they are fun to play with as Pete mentioned. It is an interesting take on the C&B's

RNT2 has it
http://www.rnt2.com/gansons-bags-of-ever......RZManpcs