This knob fits Whirlpool Gas Cooktop models WFG374LVQxx. It is a direct replacement for Whirlpool model numbers:

W10160648 White, Control (2)
W10134133 White, Pwr Burner
W10134130 White, Accu Simmer
W10160649 Black, Control (2)
W10134134 Black, Pwr Burner
W10134131 Black, Accu Simmer

It will probably fit many other gas stoves with a 0.25-inch diameter valve stem.

The example print in the photo has a small image of my home state set into the top of the knob. The model uploaded here does not include this detail.

The markings are all inset, rather than relief. This allows filling them with an engraver's lacquer/paint stick. I used this one, but any similar product should work as well: https://www.amazon.com/gp/product/B002BY8HKS/

REVISION: So it turns out that PLA does not hold up well next to a stovetop. The valve stem opening on these knobs quickly opened up more than desired through normal use, making the burners difficult to turn on. Some investigation turned up these d-hubs, which happen to have the right diameter for the valve stems: https://www.amazon.com/0-250-Screw-D-Hub-Tapped-Pattern/dp/B06WLMTRRN The knob STL was split into two parts, with a cavity for the D-hub and the appropriate mounting screw holes.

To use the revised knob, you will need the following hardware for each knob:
1 - set screw d-hub, available from several robotics suppliers around the web, or Amazon
4 - 6-32 x 3/8" flat head machine screws, available from Amazon or your local hardware store

Assembly: Insert the d-hub into the Oven Knob Insert STL. Ensure the set screw is accessible through the side hole. Use 4 6-32x38" flat head machine screws to attach the hub to the insert. Align the inert on the burner valve stem; tighten set screw with hex key. Slide Knob Top STL over Knob Insert. Alignment keys will prevent mis-alignment. See exploded diagram.

The revised knob does require support for the Knob Top file, due to the large opening on the bottom.