I didn't want to print all of the internal components, but still wanted to put a bottom on the lightsaber. I made a short, flat bottom piece which will replace the original, larger internal bottom.stl. I've attached an intricate Imperial logo, a less-complicated Imperial logo, and a rebel logo bottom.I added a bit of superglue just to hold it, but it snaps in place fairly well. Just print, no support needed. The attached picture is at 0.2mm resolution with 30% infill.