A floating drink coaster/caddy for the beach, pool or river tubing. Requires 4 empty plastic bottles for buoyancy. Includes a lanyard loop to keep track of caddy while tubing down the river or sitting on an inflatable (and a drain hole for melted ice to drain into the water if you put a little ice in the bottom to keep your drink cool).
Includes OpenSCAD file so you can adjust beverage container diameter/depth.
(Example shown uses 12oz plastic bottles.)
The author marked this model as their own original creation.