If you've ever solved a satisfying puzzle, you know what is meant by the "aha" moment. An article in Time Magazine 3/11/13 described it: "A well-constructed puzzle leads you down a particular chain of reasoning to a specific elegant or counter-intuitive cognitive leap, and as you make it, you know at that moment that you're making precisely the same leap the puzzle designer did. There's a moment of silent intellectual communion, of shared aha!" The same moment has been descriped as "when the penny drops."
Click on the image below and follow the directions. When the penny drops, you'll be moments away from achieving the cache coordinates, where you will find an in-theme container.
Note: I obviously did not design this game, and I'm not sure who used it first in a geocaching puzzle. There are several like it out there, but I still thought you'd find it amusing. Have fun. No geochecker will be needed.