We'll start with the guy on the playing cards, you may recognize him when he's dancing , balancing , juggling , playing an instrument , or playing with cards of his very own. He typically represents the Court Jester. Then we have the obvious, the Price is Right game, the album and song by Steve Miller, and the eternal Pvt Joker USMC.
Enjoy some Wolfmother.
* Picture taken from here. It is from a deck of cards dating back to 1930.