I looked and looked online but alas could not find anything that dispensed Solo Cups.
So I spent 10 bucks ish and solved the world wide problem!
I used a rubber gasket sheet from the plumbing department as the holder in / resistant cup dispensing area thing.
Then I used one of those circle-screw-it-to-get-it-tighter circle metal things, also plumbing department. (I know ya'll will help me out with my vocabulary, but I'm a self taught inventor that learned from going to hobby shops and practically living at Lowe's.)
I used 2 "T" mounts (put 3 circle metal things on the PVC, 1 is for the gasket, the other 2 you slide the "T" mounts through and tightennnnnn, then use the "T" mounts to attach it to the side of the bar. Easy-peasy-japanesey.