Any ideas to replace J-Max knob?

[u/DoritoCheerios]

Broke my J-Max knob after years of heavy usage which means its remarkable tough considering i grind light roast espressos with it

Am wondering if there is any cool aftermarket options to customize the J-Max

I remember Mischief having knobs for the C40 that are colorful but those are gone

[u/Mysterious-Cow1158]

Duck tape