4in circle. Sharpie pen. Dremel multi max . Amazon ss cup holders. Black silicon. Box cutter. Everything needed to upgrade the cup holder. 12 bucks and 30 min.
For some reason, my Yeti 30oz tumbler doesn't fit all the way into the bottom of the cup holders so the mug doesn't sit flat on the bottom. Must've got an imitation Yeti or something.
I used the Polaris ranger cup holders. Seemed to hold more of a variety of different cups, cans, bottles etc. Cut the hole 3 1/4” and used 1/4” wide 3m double sided tape to keep new cup holder from moving around.