Rollon upside down holder

This is a holder for Ldb roll-on deoderant/antiperspirant. When there is little left in the bottle, this holder is used to keep the roll-on upside-down to be able to use the last of it before throwing it away. This is my first use of "build123d", it is nothing fancy :) By modifying 'cutout_diameter' and variables in the Python code and rerunning “build123d” to recreate the STL, this can be made to fit other roll-on brands as well as long as they have a similar shape.