Preferably on Harps but have at it!
There's a ton of amazing songs being requested but I'm surprised to see this isn't one of them!!
(Searched "Marble Machine" and got 0 results)
Music (original) - https://www.youtube.com/watch?v=IvUU8joBb1Q
Synthesia - https://www.youtube.com/watch?v=JqDA_UvjtMc
Music sheet - https://musescore.com/user/15866106/scores/3533046
(edit additions)
Small Music Box version (with pics of pin trigger music sheet at the end of it) - https://youtu.be/1Uf3BuaTS2Q