It's finally finished! Sadly the sound ended up not working, which is fine since I couldn't fit a speaker in there anyway. But the lights all look great, and the IR LED works with my laser tag system, so I'm pretty happy with it. I will probably do some more clean up to hide the hot glue joints, but overall it was a great learning experience. I will be uploading the code and some basic instructions soon.
Thanks to Matt Taylor at Taylor 3D Solutions for the 3D printed parts.