Made by myself (Middle Woodland Ear Spools).  Double Flared SINGLE black moonstone plug with super high flash in any light whatsoever.  This plug is correctly angled so that the flash is "on" and face forward.  Insert plug and slowly rotate it until the flash turns on in the mirror.  It will stay in place.    REAR FLARE is around 1.35 to 1.40mm larger than the wearing size.  This may be just a tiny bit tighter for you than commercially made but if you have been wearing this size for awhile, you will most likely appreciate the tad-tighter rear flare.  Super comfy wearing saddle, plug will not sag.  Many have told me my black moonstone is their favorite and most worn plugs as well as my saddles being the most comfortably made.