I used to make them; they were retired from the CoS Emporium
a little more than a year ago.
The reason for the retirement was due to finding myself with more projects than I had time for, and each Baphomet plaque took a great deal of time. So in order to move forward and pursue new endeavors, I had to bring their production to a close.
It's possible I may officially bring them out of retirement some day, but with my current work load it may be awhile.