So I came across this website that sells plastic, Acme Plastics.
I see they have both cast and extruded acrylic tubes.
I thought, “Hey, that’d be cool to make something from that!” Since there are cast acrylic is an option, I immediately thought, “That’d look awesome if engraved and then lit from the bottom!”
One could have a single LED in the base with a coin cell battery and the LED would be pointed up the axis of the tube. To be honest, the idea came to me when I thought it was a rod (solid tube), but perhaps one could cut out a circle to “plug” the bottom of the tube and help direct light up the walls of the tube. More thought would probably have to go into this to make it work for a tube, but a rod may/would work better.
Anyone thinking of doing something like this? Perhaps you could use this to make a set of “icicle lights” or something?!
Edit: I had to click on the picture in order to see the base of the tube.