After installing the Canvas multi-filament add-on to my Elegoo Centauri Carbon, the orignial single-spool mount sat vacant.  I felt it needed a decorative cover.

I designed this scalloped-edge plug to fit in the old mount with the Elegoo logo inset into it.  Designed in TinkerCAD and printed on the ECC w/ Canvas.  I used Elegoo PLA-CF Black and Sunlu PLA+ Blue.  Printed with 3 walls, and 15% gyroid infill.  I do recommend using supports.  I suggest printing with the knob face up even though this requres the use of supports.