3 different kinds of geometric designs. Use it for wall art or even as a coaster.

File 1:
Simple and pretty multicolor.
No need for AMS or MMU
Select in your slicer where you want it to change color.
Printed in white and black Azurefilm PLA
0,4 mm nozzle
10% infill
Scale it as you like

File 2:
Small change in design.
Without the base, but with a frame. No multicolor (unless you want it)
Printed in black Azurefilm PLA
0,4 mm nozzle
10% infill.
Scale it as you like

File 3:
More advanced design - multicolor
No need for AMS or MMU
With a nice 3D look.
Parts of the design is more extruded, which gives it a nice looking effect.
This is a 3 color change print.
Select in your slicer where you want it to change color.
Printed in Azurefilm PLA. The red filament is Spectrum PLA.
0,4 mm nozzle
10% infill
Scale it as you like

Have fun :)