While building my Printer, I kept misplacing my stuff (including my nozzle lol) and kept searching it all over my appartment.
To mitigate that, I designed this tray real quick. You can simply bolt it under the top 3030 extrusion of your printer with 2 6x12 Screws and 2 6mm T-Nuts.
Printing with support is recommended to get a nice round shape but not absolutely necessary.
The author hasn't provided the model origin yet.