I wanted a posable tripod that would fit a camera mount atop a 12mm ball. I used that same 12mm ball and 12.2mm cup to design articulated posable legs.

The inside cup of the joints use fuzzy skin, you may want to adjust them to get the friction you want. The fuzzy skin will wear with use.

I added modifier shapes to areas where I didn't want fuzzy skin, included in the file. Other feet pieces or segments could be designed using the same 12mm ball and 12.2mm cup.

I've already found a need for more grip on the feet. They don't grip smooth, glossier surfaces. Something like TPU might be needed.

Might struggle with heavier cameras.