Awesome thread! I had followed the build (and helped with some screen shots) on the RPF but I think the project fizzled out (I would have to go back to the site and check up on it). There is also a version that was used in TNG (episode: Times Squared) that has what looks like a shorter-squattier stair step on top, with gold tape on the second to the bottom ring, and a faint Romulan/Vulcan glyph. I don’t think it’s the same decal as the TWOK decanter.
A while back for a party, I came up with a cheap alternative on constructing the stepped bottle. I took a Tupperware spaghetti container and a water bottle that was stepped and placed it inside itself. I trimmed down the cylinder so that the bottom of the water bottle almost touched to inside bottom of the container. I then glued it in place. I wiah I had more images of my work and the finished project, but I was rushed for time. Here’s basically what I came up with:
Now that I found this thread, I have more hope in obtaining a more accurate decanter. But until it’s production is sorted out, I plan on making one of these cheaper versions for myself and to take to parties.