The stops aligning the top two drawers of an old desk vanished, so I got the job of replacing them. They’re hammered into the wood frame:

And stand up just enough to engage the back of the drawer face:

Back in the Basement Laboratory Shop Wing, I harvested steel strips from a defunct PC case, rubber-hammered them flat, sharpened a cold chisel (un-hardened, so it always needs sharpening), and got to work:

The pointy sides should have sharp edges, which you get for free with a chisel. You also get a bench full of little steel slivers perfectly suited for embedding in human flesh. Wearing eye protection is more than just a good idea, too.
Introducing what will become the visible edges to Mr Disk Sander makes them marginally less hazardous:

A slightly fuzzy picture of a test fit shows the stops should suffice:

Which they did:

Nobody will ever notice the blob of hot melt glue behind each one:

Done!