Ceci n'est pas un rocher.

I was coming here to say this. Truly a disappointment that the Pentel Twist Erase GT is not included as a choice.

https://youtu.be/XPGgTy5YJ-g

I remember being confused after being handed some wooden disposable spoons at a local screening about 7 years ago. The person handing them out explained it to me, and suddenly I started noticing how obvious the spoons were. I think I had watched the movie a handful of times before, but never really paid attention to the backgrounds unless it was one of the outdoors scenes that were obviously filmed on a soundstage.