Update: So it turns out that these adapters DON'T FIT! So don't buy them. Check out the video below for a closer look.
One of the big gripes with the Pebble Steel is that you can't change the band to anything other than the included leather or metal versions. A fun accessory has popped up however that looks to change that.
It doesn't carry a fun title, but this NATO/ZULU 22mm adapter will fit on the Pebble Steel connector and let you strap on a NATO or ZULU watch band of your choice. The one catch here is that the designer hasn't actually tested these out on an actual Pebble Steel yet, so there's no guarantee that it will fit (but we'll keep our fingers crossed).
We've got some of these guys on order so we'll be sure to drop a review when they come in. If you happen to pick up a set, be sure to let us know what you think!
Video of the adapters not fitting: