Well there's no such thing as lucky amulet (or (bad) luck in other words), it only gives you the illusion of an extra advantage which provides confidence around your games which in reality could boost your success rate due to the positive mindset.
and I drink coffee in the same cup. so my cup would be my lucky charm.
do you use any lucky amulet to play poker? Do you have a superstition regarding luck or bad luck in the game? I always use my St. George chain as an amulet and I have nothing to complain about.