I wanted a Gridfinity holder for my nozzles. Since one didn't exist, I created it in basic tinkercad with a bunch of grouping of objects and holes :). It's a 2 x 3 gridfinity, but can't stack additional gridfinity above it since the heatsinks are a bit taller. Created 4 slots for the nozzles to store my 0.2, 0.4, 0.6, 0.8 nozzles, although it can fit any size nozzle since they are all the same footprint. This fits better with the hotend silicon sock, but without it still works well.
The author remixed this model.
I took the insert holes of the nozzle, and put it into a gridfinity 2x3x3