I pulled this one off on a chick I've talked to at the bar a few times before. I had no idea how the real cube went so I made it up. All of her friends were present too. I had my virgin buddy with me (I'm trying to help him overcome his fear of women). Anyways, it went something like this:

Me: You're walking through a field and you see a cube. How big is it?
Her: As big as a car
Me: That how big your ego is.
Her: *Laughs* Is not!
Me: Haha You climb up on top of the cube and you look down. You see a colour. What colour is it?
Her: Green! No Blue! Green and blue!
Me: This is the colour of your personality. You see an opening and you jump down into the center. Now your standing in the middle. You look ahead. How far is the nearest wall?
Her: 10 feet!
Me: So now the cubes bigger? *laugh at her*
Her: Shut up! It grew.
Me: Ok *stiffles laughter* You walk 10 feet and touch the wall. What's it feel like?
Her: It's slimy
Me: *quizical look*
Her: *laughs*
Me: You're coming onto me aren't you?
Her: *laughs harder*

Then I chatted it up with her and her friends and took home two of her friends numbers. (I had hers already)

NIce post I appreciate the insight.