this article about a 14-part 3D printed lightsaber based around a replica of Obi Wan Kenobi's lightsaber from Star Wars. I downloaded the files before I even had a 3D printer - that's how interested I was in making this; it may even be the primary reason why I wanted to printer in the first place.
And so pieces started getting printed, some of them finished in an hour or two, others taking 8-10 hours each. When it was finished, I had this:
and the first real test-fit of all of the pieces
But the best part was getting everything painted to look like a metal artifact from a long time ago in a galaxy far, far away. Closer detail shots below: