I have most of the parts I need for one I am working on.
This is a great base model to start with... https://www.hackster.io/news/keigen7-s-sleek-3d-printed-raspberry-pi-4-cyberdeck-rings-in-2024-in-style-4f81c6c29d2a
Most of what I really would want these for though can be done with a tdeck on NOSTR