A smaller version of my magnetic wool holder.

This one only requires 2 magnets and the screw is replaced with glue.

This one cannot hold as much weight as the original, but would be perfect for smaller, light weight materials.

Anycubic

Kobra 2

No

Yes

.2mm

10%

Print the spindle itself with at least 30% infill.
To print the hood, I stood it upright, and used a 5 mm brim to hold it in place.

You will also need 2 10mm diameter, 2.5mm thickness, magnets.

Glue a magnet in each of the spindle and spindle holder, ensuring that they have the correct pole directions.