Here is a pair of hackable and programmable RGB shades that lets you put on a show outside and learn more about electronics. This RGB LED Shades Kit from Macetech comes with an array of 68 full-color pixels on the front. These sunglasses have an Arduino-compatible microcontroller that controls the color of each pixel.
The kit comes with a hacker board, so you can add your own circuits. As you can see in the above video, RGB Shades can display fun animations in various colors. You can get yours for $129.99.