I realize that it probably looks like some kind of drug action going on in the middle panel, but that being is in fact playing a slide whistle with tubing added. It’s something I saw in a book about homemade instruments – you add a stick to mark notes on, and the tubing so you can rest it on your lap and actually see the notes you’ve marked. The author claimed he thought the slide whistle was one of the most beautiful instruments when properly played. Anyway, between the unfamiliarity of that idea and the sketchy drawing, no one can actually tell that’s what it is.
I believe I drew this after completing my second 24-hour comic (which was also my second 24-hour comic that year).