A lot of people waste energy using these two items by buying the speaker systems for their mp3 players and charger their phones. Both uses usually end up with leaving the charger or system plugged into the wall, which is a big big waste of electricity.
So I developed a simple, green and cheap solution that everyone can do. This whole instructable can be made with recycled materials around the house, as long as you keep broken stuff like I do. If you don't that's totally okay, but you will have to order/go out to buy a few things.
Depending on your experience, it should take about 1.5hours for full assembly.
The black charger below is one that I made for me. I like the color black and I designed it based on what I like. I think that it's better to design something that you like and that you can put in you're own creative input into. So, I'm going to show you the basics on how to build one and I'm going to leave it up to you on how it looks. Have fun with it.
By following this instructable step by step you will have charger that looks like the white one pictured below