I needed a little cup to transport a single serving of loose-leaf tea from my desk to the coffee station at work. This is the no-frills (well, maybe a few frills) object I ended up designing for this purpose. I'm sure you can find your own uses for it. Shot glass? Egg cup? Dipping sauces? How would you use it?
This was built with about 16 lines of code: http://netninja.com/2012/02/04/from-lines-of-code-to-glazed-ceramic/