Disney has launched two new cheap MP3 players for kids. The first one is the silver Mickey Digital Mix Sticks MP3 player and there's also a pink Princess version for girls.
The players only cost $49.99 but they only have 128MB flash memory. However, this is expandable up to 1GB via SD or MMC memory cards.
The player measures 4.20" x 1.5" x 0.6" and has a battery life of 8 to 10 hours.
The Mickey version can be found here and the pink Princess version over here.