Hardware
Brass pins
Nine developer pins milled from brass on the CNC and filled with enamel: HTTP status codes, curly braces, and a couple of things worth muttering.

Nine pins cut on the CNC: brass blanks, lettering milled as a recess, then filled with enamel and baked. Two posts and butterfly clutches on the back, so they sit flat on a jacket instead of spinning.
They were made for Misaligned Workshop, which is where they were sold until Etsy deactivated the listings.
Status codes
404 — Not Found
500 — Internal Server Error
502 — Bad Gateway
Words from the log
error
agent
user
Braces and mutterings
Curly braces { }
#FIXME
monde de merde
On the back
Two brass posts, butterfly clutches, and the milling marks left visible.