A quick model for the 14oz yeti mug and a phone holder that can be used to fit onto any t-slot rail. I used ¼-20x ½" socket caps, although the socket caps stick up slightly but no damage was done to my yeti. The phone holder has drain holes and I left the center one open as a drain hole as well.
I printed mine with Prusament PETG and it has held up nicely throughout the season.
Revision 4 now has thicker walls for added rigidity.
Revision 3 has taller sides so the phone is covered a bit more.
Revision 1 has shorter sides for the phone holder but is easier to access.
The author marked this model as their own original creation.