Montreal was violated .... AGAIN!

What the hell are these things? I keep seeing them on the drifting cars. A few people at the last CSCS had them and i seen a few in pics on here? Is it something to personalize your car. Or to bring you luck? I guess its part of the drifting culture. Someone wanna enlighten me as to why all the drift cars have em. Besides telling me “because there a DRIFT charm”