Then any common or garden Star of David will suffice, or if you want an amulet of one of the more esoteric examples then a quick internet search will show you all kinds of variations. There is no set definitive design other than the Star of David.
http://www.moonlightmysteries.com/t...lomon-amulet-key-of-solomon.html#.UYZuZso0S_I
Thanks Castiel so wearing star of Davis = Seal of Solomon. However, feeling curious about all other fancy designs seen on ebay going for about £50...
The star of Davis is pretty sweet but as a Welshman I also enjoy the diamond of Rhys Jones.