I videotaped the hologram so you can see them together(ish) if you don't have a projector. The projector we made is about 18 inches at the top. I could have gone slightly bigger which I wish I would have. :) This is a ton of experimentation and seeing what works and what doesn't. I like the way the 5 Creatives lens looks at the end but it can still be tweaked. Also the falcon constellation should have the lights twinkling in 3d but it didn't quite work.