Last time I bought audiobooks I got them from Downpour which included DRM-free downloads as either MP3 or M4B files, in addition to listening through the website or app. I believe Libro.fm may also offer this. Most of my ebooks are through Kobo and are DRM free as well.

Does depend in some cases on the publisher.

The last digit of pi is clearly the i, which would be equivalent to 19 after converting to base 10.

After Jones Soda did the six-pack of Thanksgiving dinner themed sodas (including Turkey & Gravy), this kind of thing just doesn’t surprise me any more. I guess it’s meant as more of a novelty thing than something people would actually use in seriousness.