Message in a bottle

Came across this one today, fun !

Interesting. At 00:44 he appears to be wearing surgical mask to protect him from disease, but is smoking at the same time! :slight_smile:

Has anyone found details about it's design?

The capping and uncapping the bottle adds a nice bit of theater to the project, looks like a lot of fun to build and use. The music generation algorithm was probably very interesting to work on as well.

Duane B