This model uses the Gridfinity plugin for Fusion 360 to create slots for each of the brass nozzles available for the Prusa Mk4. I did without the “Generate lip for stackability” option so that I could print the numbers in a different colour without any hassle. The slot depth varies with the left hand depth designed deep enough to be used as a push to remove the nozzle.
Example printed with the default 0.4 nozzle on the Mk4 with 15% adaptive cubic infill. Based on the idea from https://www.printables.com/model/476392-mk4-nozzle-tray
Edit: I added a version with the relevant dots associated with the nozzles but may need to refine that print.
The author remixed this model.