So I have a bicycle dynamo (just a cheapo bottle one) that puts out 12 volts at half an amp for a total of 6 watts.

I put an ammo box pannier on it, and its just begging for some geeky electronic stuff on the inside.
(already has an LED tail light and headlight that i can turn off and on)

I was thinking maybe a CD player so i can listen to the black keys on my park ride or something.

suggestions welcome