For my Ego, I made my own very simple lanyard. I bought a name tag lanyard at Staples, removed the pincer type clip that came on it, and added slipped a plumbing O ring onto the metal ring of the lanyard. It holds it very snug, the Ego has never fallen off, and is just a simple, very inexpensive way to get the job done. It really looks like it was manufactured for it.
I may add a dangly bling, but I want to be cautious that I don't add something that will scratch the Ego.
Honestly, I saw more ornate case style lanyards, but this one I built for about $1.50 works just great!