Codyacehardware, has beaten me to it (https://www.thingiverse.com/thing:2510588) He had the same idea I had...remix this laser show so there is no need for supports.
Here is my version of it. I haven't worked on the display disc yet..the batman one is the only one, but its holes need to be bigger.
Print bolts from original
I like Codyacehardware gear system better.