Yeti Mug Car Holder Adapter

I modified the original design by tapering the lower cylinder, similar to the shape used on larger Yeti cups. Instead of using a retaining “ring” to hold the mug in place, this version relies on the tapered shape to center and stabilize the cup. For additional stability, consider adding weight to the bottom of the adapter. Standard water bottles/yeti are stable partly because they have some mass, while 3D-printed adapters are very light and end up supporting the full weight of the mug above them. One idea is to embed something heavy in the base—such as golf balls or other spherical objects filled with cement, sand, or small stones—to act as ballast. If you come up with a creative solution or improvement, please share it!