Here is my case mod of my MAKE: Daisy. The free (as in speech, not as in beer) MP3 player. I bought a nice plastic case that I thought would fit it perfectly, but when I got it home, that was not the case. A little work with the dremel fixed this perfectly though. I am using a rechargeable battery out of a cordless telephone, it must be recharged by putting the battery in the phone and sitting the phone on its dock. Buttons are hooked up for volume and track selection.