Nalgene Coaster

thingiverse

I spent months using a paper towel as an impromptu coaster before realizing I had the capability to tackle my problems head-on. (Okay, not all of them, but still.) I crafted this incredibly straightforward coaster with the intention of molding it to fit snugly under a standard Nalgene bottle. It works out pretty well, keeping the bottle centered and giving it some extra stability that helps prevent it from toppling over – although I'm not responsible for any accidents. To improve the design, I added a lattice pattern to the part that comes into contact with the base, allowing excess moisture to drain away if you're using ice water that tends to sweat.