Just because it's Christmas, this is fun and big.
Feel free to explore and add to it as its not yet complete.
There are so many possibilities for extra rooms in the workshop as its built in a huge cavern inside the mountain I have used very little of the space available to me. I expect I will expand it eventually :)

Oh you must have version 1.7.2 as its made from a lot of packed ice this will not work in earlier versions