Tinks

Physical appearance
At first, they appear to just be hovering orbs of bright light, but they are actually little beings that are naked, beautiful women with wings that shine like tinkles. It seems that they can get really angry when someone noted that they are naked, as Dean Winchester did and the Tink began to attack him - though it is possible that it was sent to attack him in the first place.

Powers and abilities

 * Flight - They can fly and move very quickly through the air using their wings.
 * Super strength - They are exceptionally strong for being very small, being able to knock grown-men around.

Weaknesses
Grained substances - If a grained substance is poured in front of them, they are forced to count each individual grain. Iron - Iron is very harmful to fairies, therefore including Tinks.
 * Radiation - If a Tink, and possibly all fairies, are exposed to enough radiation, they will explode.
 * Cream - Fairies love cream, and it can be a way to easily appease one.
 * Angels - Seeing as Gadreel was quite confident he could take down the Wicked Witch, an extremely powerful fairy, it's almost certain that angels can overpower and probably kill Tinks.

Appearances

 * Season 6
 * Clap Your Hands If You Believe