Instructables
Picture of The Musical FootBall
This project is to construct a musical football. The reason for my project is that I was inspired by a little kid with austim who love sports and music. So what better way to have fun then have a ball that you can play with and create music with. The following steps show how I constructed the  football and it musical components.
 
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Step 1: Shopping List

Shopping list
ARDUINO UNO
Soldering Iron (and solder :-)!! )
Breadboard
hot glue gun
youth football leather (able to get at wally world)
foam youth football (wally world also)
(1) k size coaxil plug (radio shack)
(1) submini slide switch
(2) small speakers (taking out of musical cards)
(7) uphostery tacts
(8) AA batteries and 8AA battery holder (to start was going us 9volt but decide to go with more power)
(11) two foot wires

Step 2: Programing Arduino

Picture of Programing Arduino
http://www.instructables.com/files/orig/F2T/BLKU/GY65QIF1/F2TBLKUGY65QIF1.pde 
the link is the programing of Arduino.... Thanks to blinkyblinky for the code who got it from Joe Marshall 2011

Step 3: Board to insert to Arduino power and bottons

Picture of Board to insert to Arduino power and bottons
For this part you will need two small boards to make a shield for your arduino that your buttons and power supply will be attach too.
1. Take pins and place them in analog 1-6 and then on the side place pins in 7 and 8. ( these will be for your buttons) Place a pin in 11 and ground on the same side. (these will be for your speakers)
2. Take a preholed board and measure out to just long enough to cover your arduino side to side.
3. Then place these board on the pins and mark where the pins are located on the board.
4. Remove pins from Arduino and solder pins in place on boards.