I just finished a pair of Open Portal Lamps with the portals being ebonized. One is an eight-panel symmetrical design, and the other - a seven-panel asymmetrical design. Both are built with African mahogany. I have built several Open Portal Lamps in the past, but these are a new "edition," being having a slightly larger footprint.
The design is simple in concept, but somewhat tedious to execute. Nevertheless, they are a joy to build! :)