Here is a pendant created from the same artwork as our Mortality Ring - it has the pentagonal crest with skull and bones, and a large gauge "bail" on top to hang from. We created this because we thought it would look good and might have some interest among Masons, looks sort of like an old padlock for the keeping of the secrets. Not really a ritual pendant but nice all the same.
The pendant is 11/16" wide at the widest point, 13/16" tall (including the bail on top) or 5/8" tall without the bail. The thickness is just about 3/16". It weighs 10 grams or about a third ounce. Includes an 18" Spiga chain and velvet presentation box.