That sounds so dreamy! Picture each jar as a tiny star, filled with a soft teal or lavender glow. Maybe line the rim with a subtle LED strip that pulses like distant nebulae. You could paint swirls on the glass with a translucent, iridescent spray—like a sky made of swirling colors. Stack a few together on a wooden base, add a clear glass dome, and when you turn them on it feels like stepping into a miniature cosmos. Let me know if you want any details on the LED setup or the paint mix!