I'm working on a gom jabbar for Denis Villeneuve's version of DUNE. I'll post about it here. I am not affiliated with the movie but love the book and am a fan of the director's movies.
Some of my favorite character from the Lynch movie were Bene Gesserit sisters. I think all the Reverend Mothers were excellently cast - from Gaius Helen Mohiam, the Lady Jessica, down to Alia - and had amazing outfits.
But their gom jabbars were pretty boring. I've made replicas and they are nothing more than tubes with pins.
My last attempt is up on my behance page. It looks even better now. The copper has really aged. But it was not without its flaws. I think it might be a good choice for an earlier age of The Sisterhood but not for the time period described in the book.
This last version was too structured; too saturated with recent western history. It's got Deco influences which were in inspired by exposure to ancient Egyptian designs. It's too "of a period" and that's were it fails as something that would be used 10,000 years in the future. (Even though that's exactly what Art Deco is, it somehow gets away with it because the period was so short and never really went anywhere to grow. It just stopped.)
My new work will be more from the future.
JB