The Sansa Shaker is a little, pink or blue, kid’s dream come true. I’ve listened to it with my kids-it comes with ports for two headsets- and the sound is fabulous! 
It retails for around $29-$39 depending on the memory you want. Check out a comprehensive review at TechTalk.net. This MP3 player is fun, easy to use and well priced.
Great Music, Great Gift
November 26, 2007 By 1 Comment
Appliance Plumbing Design
[...] pieces that can be damaged by shaking. You might want to go for a solid state model like the Sansa Shaker or others that are less likely to be damaged if used while exercising- or if you plan to loan it [...]