I ride a Side by Side out in the dusty desert and found that my drink kept getting a thick layer of dust all over it and even after wiping it clean I could still feel the grit in my mouth so I made a simple dust cap printed out of TPU to fit over the Yeti Rambler 30oz. This also fits over the cheaper Walmart Ozark Trails 40oz mug or any mug with a top diameter of about 103mm. I created this in Onshape so if you'ld like to modify it to fit your mug just make a copy for your own use.
Print in TPU or other Flexible Filament
The author marked this model as their own original creation.