Amazing work!
I am the Executive Producer on The Cave at Double Fine. I always thought the game art/theme would make for an amazing pin, and what you have done is amazing!
Let me know what art, sounds, music...etc you need for the project and I am happy to provide them to you.
I image you will also need a set of these http://shop.doublefine.com/products/the-cave-character-figurines , so PM me you address and I will send you a set.
Looking forward to seeing more updates on this project!
-Matt Hansen