Cup Holder Adapter
thingiverse
My Wife liked to use a cup that's 100mm OD, the cup holders in my Jetta were much smaller. I also included the FCStd of all the raw parts before merging and cutting out so you could change the model to match your cup-holders and cups. To make the FCStd work you cut the inners out of the outers, cut the handle opening out, then merge what's left in FreeCad.
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