Originally Posted by CliffordK

Here's the silver one.

Half Link 1-Pitch type Wide Silver Z510HX for Tour, City & Fixed Gear | KMC Chain

Assuming you don't want galvanized.

Half Link 1-Pitch type Wide RB (Anti Rust) for Tour, City & Fixed Gear | KMC Chain

You could, of course, break up the half-link chain, and have over a hundred of the half-links for dirt cheap.

Half Link 1-Pitch type Wide RB (Anti Rust) for Tour, City & Fixed Gear | KMC Chain

Then, get a bunch of the "bullet pins".
https://www.amazon.com/KMC-Bullet-Pi.../dp/B008XHU6CY