As you can see,I am quite opinionated when it comes to 'shimmers and twinkles'.Many of my toys success was contingent on just the 'right' blink.So when I make this suggestion,I mean it seriously to address what I said above : consider having someone build you your unit with all the parameters variable; a sort of 'shimmer and twinkle' synthesizer.Then for this and future products you could twiddle with a few knobs and switches to change sequence,randomness,intensity,duty cycle,and frequency.When you found one you liked,you could store those parameters.I do that in a limited way myself when I want find something that is more appreciated visually than theoretically.