A drink holder is important in the cockpit. Ceilidh had a teak, wall mount drink holder tied to the pedestal with light line. Don't add more teak to varnish in the Florida sun. But if I had a "quick release" to unfasten it so I could take it inside, that would be ideal.
I fashioned a clip, cut from 1/4" PVC that is mounted about 1/16' further away than a precise measure so that it "snaps" in place. It takes a careful mount, but it has worked great for 17 years.
Cliff and Bezy McKay on Ceilidh (Kaylee) Hull 261