In "Chasing Rainbows", Murky creates a robot double of Rainbow... who proceeds to get stuck at one point and just says "I have a good... goo... goo.... goo... goo..." while Twink just stares at her and takes everything.
2014 Series
From the first episode of the 2014 series. Rainbow Brite's color is fading because of Stormy's color-sapping rain cloud, and she tries to think cute thoughts to reverse the effect.