Step 1: Materials
Step 2: Program LED Strip
Step 3: Program & Calibrate Wind Sensor
Experiment with blowing on the sensor and find the threshold that must be reached to get from inhale to exhale and exhale to inhale. Here's a good tutorial and sketch for getting started with the wind sensor.
Now use the wind sensor as an input and the LED strip as an output. Program the LED to change colors with inhales and exhales. The wind sensor is really sensitive so you'll have to observe the serial monitor as you inhale and exhale to figure out thresholds. Also, the threshold can change depending on location and weather so you might need to keep recalibrating. Here's the code we wrote.