Got tired of plugging and unplugging the same three cables time and time again.Two-part snap-together holder with friction fit connector-specific cutouts for power, miniDP and USB makes them behave close to a single connector
The snap-together part of the design is simply a square-shaped registering shape. This worked better than the first try using circular shapes. Could be that tinkercad makes inner diameters at the corners of polygons rather than midpoints.
I did the same thing for a friend’s mac, last week but we haven’t tested it yet! Heh! Here is a picture