Here's a custom ordered AB-Synth Supreme. (The Supreme is a PGS exclusive, but when they're sold out, I'll take a custom order...as long as it's really custom.) This one has 8 random flickering LEDs.
i'm thinking they're the three on the three front panels facing the user and the five matching whites on top, oranges are obviously the switch indicators. regardless, that's pretty crazy.
There are 8 flickering yellow LEDs. (They're powered separately from the circuit so they can be turned off separately, and so they don't degrade audio quality.)
I've got a video of the thing in action that I'll post soon.