Custom QR code with label

0.2 nozzle recommended, but 0.4 works as well

You can create your version here:

https://3dgen.cyberhorizon.hu

Load the generated .3mf to bambu studio and 
At the popup “The 3mf is not from Bambu Lab, load geometry data only” press OK

At the popup “This file contains several objects positioned at multiple heights. Instead of considering them as multiple objects, should the file be loaded as a single object with multiple parts?”  press Yes

Then, at the Prepare tab, at Process, select Objects, and you can edit the colors there