I always enjoy The Desert Sun's column "Thanks for the Memories". This sounds like it was a lot of fun. I wish I could pick up a photo of this hat:
"Hats that made history included one called "Palm Canyon Drive". With battery-lighted palm trees, little cars, and shops".
https://www.desertsun.com/story/life/entertainment/people/2019/11/24/palm-springs-hat-parade-homemade-fun/4281991002/