Thanks for the mention, Nona. That would be the Saxonette frame, PFM, November, 2004, page 36. There was also an article on formed-rod mounts in the February, 2002 issue.
I used Mighty Mounts frequently, until a customer brought back a two-year-old project in which we'd framed four ceramic plates. The mounts were crazed, cracked, and broken on all four plates. We never did figure out exactly why that happened; the plates were small & relatively light, and the frame was hanging in a shaded living area the whole time.
Julie, "The Complete Guide to Shadowboxes and Framing Objects" class will be in January at the West Coast Art & Frame Show in Las Vegas. That covers several different kinds of mounts.