1) thermocol box piece.
2) 2 speakers (china mobile phone ringer that sounds loud).
3) i pod.
4) stereo head phone jack.
5)head phones cable.
first of all take a piece of thermocol shaped like a speaker box that shown in the figure (or) as you like.
make three holes in a shape to fit the speakers and i pod.
the sound is awesome i think you will enjoy it .