I think glow-in-the-dark was a missed opportunity with the Rescue Bots (for the kiddies), and I'd love to see some GITD details on some TFs toys.

I think... we've only had two Transformers (actual) toys with GITD applications, and they were two of the Marvel Transformers from 2011. Wave 8 had two redeco toys (Ironman/jet, WarMachine/car) which both had a bit of GITD on the chest and eyes. Maybe somewhere else as well, but it wasn't a lot.