Really, it does! No, not really, but it does make me quite happy to hear it. I also use it in my Weather & Climate class since rainbows are part of my curriculum.
I'm also finishing up my latest Oz novel, The Ozian Adventure of Pickleless & Blu, which involves the Great Rainbow of Oz being turned to glass. As such, here's my own work related to rainbows.
James C. Wallace II
Royal Liaison to Princess Ozma