The CupClam drink holder can be mounted in either horizontally or vertically-mounted StarPorts, to hold mugs, stubbies, wine glasses, even wine bottles.
Railblaza CupClam
$27.95
CupClam Overview
The CupClam drink holder can be mounted in either horizontally or vertically-mounted StarPorts, to hold mugs, stubbies, wine glasses, even wine bottles.