False colors aren't new.....there were some very bizarre effects filters available at one time from the likes of Hoya and (particularly) Cokin.
Yes. This inspired me to dig out my old Spiratone 'Vibra-Color' filters. Anybody remember them? I haven't used them for a long time because I do mostly B&W, but am going to see what I can do with them now. Maybe on my Holga ...
Moma don't take my Kodachrome away!
Oops, Kodak just did!
For all practical purposes, they've taken Kodak away.