Popular with gamblers and those who take serious risks in life.
"Here is the red-headed 'Luck o' the Irish' holding a four-leafed shamrock in one hand and the proverbial left-handed monkey-wrench in the other! Lady Luck favours gamblers and risk-takers, from her horseshoe tiara, dice earrings, 8-ball brassiere, rabbit foot key-chain, and cute card-suit sarong, right down to the wishbone in her garter!"
-- The Lucky Mojo Curio Co. catalogue