Been working on the next prototype of my MP scaled remote LED Energon Cubes. Batteries will not drain when cubes are turned off with the push-button switch. (see video) https://www.facebook.com/video.php?v=400838100282691
I love your cubes. I've always though of the Cybertonium cubes as being more of a "Cyan" color, but maybe that's just how it looks on my TV. The iridescent ('rainbow') cubes are my favorite. How big are your cubes? I have a set of pink light-up cubes that are closer to scale with pre-Movie 3 CHUGs. (One night during a blackout, 4 of these made for excellent reading light.) I also have some (that don't light up) that are closer to G1 (1984-85) scale or about the size of standard game dice. The real reason I want to know their size is that I've always wanted to fill 1 or 2 Lionel gondolas (interior dimensions: 9" L × ≈1.5" W × ≈1-1.5" D) with fully-lit cubes.
Thank you, I really appreciate that-- This train looks like a really cool idea! The cubes I have are exactly 1.5" measured across; hope that helps! Happy New Year, my friend!