How to Prank an optical mouse by replacing the laser and right-click with a toy

The mouse is the primary tool most people use for accessing their computer and the vast stores of information on the Internet. Wouldn't it be funny if instead of allowing you to click icons on the computer screen, your mouse just lit up and made noises when you pressed it buttons? Well now you can prank a friend's optical mouse and make it so. This video will show you how to do it using only a mouse, simple tools, and a light-up, noisemaking keychain cow toy.