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