I found this funny sign on the internet. Since there was no MMU version yet, I simply traced it and prepared it for multi-colour printing. This makes it possible to print the sign from top to bottom so that the prettier front side is on the print bed.

UPDATE: I added also a version for people without MMU or AMS. So you can manual change the color once at the right high.

The holographic H1H printing plates are particularly recommended.

Where to buy cheap & good sheets: (Affiliate Links)

Prusa MK3/MK4: https://s.click.aliexpress.com/e/_DllkNvN

Bambu: https://s.click.aliexpress.com/e/_DFuoF6J

Bambu: https://s.click.aliexpress.com/e/_DDGlSbH

https://youtube.com/shorts/jA69yLZxApY

Alternativ Sign: "EVERYONE IS AN EXTRUDER"
https://www.thingiverse.com/thing:6713413