Yes, Lioness, I'm guessing sky, too. And TW, what an exquisite guitar.
One of our holiday traditions is this advent "calendar". We began on the first Sunday of advent, and go through epiphany. Every day we add or move the felt characters - the girls love this. The sky is made of navy velvet with tin foil behind it, and I cut holes in the velvet to make stars. The velvet has a real sheen to it, reflecting the flash. Here's its current status: Closer View
This is what it will be about Dec 13-14. #2
Dec. 24/25 (Notice the first wise man appears, following yonder star...) #3
Epiphany (Jan 5/6) #4