I stumbled upon this cool video, showing old Ticonderoga ads throughout the years all while using an old jingle as the soundtrack.
Caution, spoilers within!
Here's an old educational film from Sheaffer about writing, the history of writing, and of course, how fountain pens work. I really love these vintage educational films, so much that I own a few (not that I have a projector!) from the archives at SIU-C.