The Three Musketeers: The Animated Series

In 1968, Hanna-Barbera produced a Three Musketeers animated short series which aired as part of The Banana Splits show, along with an Arabian Nights cartoon and the live-action serial Danger Island.

Thanks to the miracle of the Intewebs, The Three Musketeers cartoons can be found online, in their entirety, at The Big Cartoon Database. Each runs about eight-and-a-half minutes and features the four Musketeers plus a young wannabe named Tooly in a variety of adventures.

They are surprisingly well-written, and I gleaned a number of ideas for my Flashing Blades campaign.