The Four of Turtles also reminds me of the beginning of Prometheus Rising, where a lady is interviewed and says that the world rests on the back of a giant turtle. When asked what is beneath that turtle, she says there is another turtle. When asked what is beneath that turtle, she catches the logical trap she is being led into, and says that it's "turtles, turtles, turtles, all the way".

I think there is an Alice in Wonderland deck which employs a suit of Hats, but I'm not sure what it is meant to replace.