Harry Potter Glow in the Dark Felix Felicis Keyring The Felix Felicis spell is known as liquid luck and can make the drinker lucky and successful! But be aware of taking too much! An enamelled keyring of a Felix Felicis potion bottle on a gold-plated keychain. Collect the other potion keyrings and pin badges. Once exposed to the light the keyring will glow in the dark. Suitable for age 14 to adult