Very cool idea Joey !

^^
Another option or further stage of your thought could be :
Moonglo walks on a staircase out of light which starts at the moon and ends somewhere in Rainbowland. That would be a homage to german RB-storytape no.14 : Regina Regenbogen und der Silbermond/Rainbow brite and the silvermoon !
Other colour-kids could also be added to that magical staircase too !
I have some pictures running through my head how that could look like !
You really inspired me Joey ... thank you so much !!!
What do you think about that?