Lost Toy

I get a lot of notes on my art car. This one, left under my windshield wiper yesterday, was an absolute winner and a total mystery. Did someone find this and pass it along thinking I would like it (they were right)? Did a child make it and donate it to the car (children at a nearby daycare center have made up a song about the car called "Silly Car")? Whatever its origin, it is charming.

Me and the car, awaiting more messages