Ender LCD knob with 3 wings.

thingiverse

I designed this style of knob myself, and it's been a game-changer - literally sharp enough to cut your fingers! So, I added a skirt to tone down its edginess. Two wings were not enough, so I doubled the design. Being new to CAD, I used Tinkercad to whip up this creation in just 2 minutes, which might explain some rough edges. My skirt measures about 7-9 mm thick; I left an extra 2 mm for good measure. If your knobs don't click into place after installation, try slipping a washer inside the button - it'll give you more clearance to get that satisfying snap.