Get this beverage holder at the boat show. Has nonskid on the bottom.
Rob
(http://i1061.photobucket.com/albums/t476/rbh1515/Mobile%20Uploads/2016-01/42BBA9D1-E2B6-46DF-8096-87CB840B9BB8_zpsnp2gr58u.jpg) (http://s1061.photobucket.com/user/rbh1515/media/Mobile%20Uploads/2016-01/42BBA9D1-E2B6-46DF-8096-87CB840B9BB8_zpsnp2gr58u.jpg.html)