The first picture was one I found on this site that was sold for $55, and the second picture was just off the internet. So I assume these things are around from time to time. But if I can get the specs or a damaged one to go by, I could just CAD out the part, 3D print the two halves out and cover them in Vinyl or leather. With the new 5th generations of these machines, I can use ABS plastic which is very robust and usable for certain parts. I just replicated a set of Cosmic Wheel hubs and they came out great, so if all else fails, I could just make them myself lol. But still need one to go by. The left hub in the picture is the 3D printed part and the right is the original.