Saint Buster Button (SBB) coil
Coils

[Celtic or Goddess spiral seen carved on stones, eg at Newgrange.    It directs the flow of energy and can be found in a Harmonic Protector made by Carol Croft]

How to make an SBB coil by Ryan McGinty
Tutorial by Meta Kumer

SBB coil in HHG made by Rich

SBB coil in Harmonic Protector

Of interest, the Loohan directions are the wrong way round: