Okay. I hate that my stove dials are in a line, but the burners are in a grid. Terrible design. Lots of stoves have this issue. Mine also has a low hood, and low contrast indicators, so you just have to know. And I'm stupid, so I get it wrong and melt stuff. NO MORE. I whipped out F360; now I have idiot-proof stove dials. And you can too.

Print these with overhang angle set to 89 degrees, and with thick walls, or solid because heat. That supports all thats needed, and doesn't fill the cavity with support. The bottom might look a bit ugly, but if you're concerned with the aesthetics of the underside of your stove knobs, y'know… good luck. I print the 'plugs' in a contrast color, too, then just glue them in.