Built a 300mm X 2500mm box but did not use the top and cut one side 2 times because the holes for the top. I cut a 300x250mm plain square for the back.
Etched picture first the cut out lightsaber shabe on 3mm birch.
Cut and etched lightsaber out of 3mm clear acrylic. Cut a bigger lightsaber out of a 3mm clear acrylic on glued the two together.
Glued the two lightsabers to the inside on box with the smaller one in front.
Cut 6mm small in the front for the remote sensor and hole in the side for power supply cable.
Hot glued LEDs on the inside around the lightsaber. Glued LED controller inside.