Flattened the Blue Jays coaster so that it can print in 2 colours.
For printing the white part, set Cura to pause after layer 15, then change your filament. That is, assuming you are slicing in low quality (0.26 layer height). The last 2 layers should print in white. Prints in about 3 hours in standard quality.

Creality

Ender 3

No

No

280

20