please ignore my messy room in the background.
Started off by modeling the basic shape using clay.
Next, I covered the top half (lid) with paper-mache.
When dry, I popped the lid off and carved out the mouth.
After I was satisfied with the model, I decided to cut it in half before covering it with paper-mache.
I chose to do it that way so it is easier to get the clay out later.
After the paper-mache dried up, I cleaned out the inside of the model.
Then re-assembled it, made sure the lid fits, and added the final touches.
And yes, that was Darth Vader guiding me through the entire process.