iLounge announced that ColorWare is now offering custom coloring service for fourth-generation iPod touch units. Costumers can choose their own color for the back of the iPod Touch, the home button and the earbuds. They have a variety of solid, metallic, and pearlescent colors. Its not cheap but it will make your iPod Touch unique from the rest of the iDevice users.
If you would like to send your own iPod Touch unit, pricing starts at $160. If you buy a new customized unit directly from the company it will cost you $390. If you are interested check out ColorWare.