Creative Zen Stone Plus has Creative TravelSound speakers, too : Shiny Shiny

This dinky little TravelSound speaker set is made for the Creative Zen Stone Plus... literally. At just £29.99, it's powered by two AAA batteries which offers a whopping 20 hours of listening. If you already own a Zen Stone and feel like kicking yourself, don't; it'll still work perfectly. There's a little retractable stand too, for propping it up in the park while you annoy the world with your tinny tunes.