A friend on mine introduced me today to the concept of Photo-elasticity.
Apparently it is a scientific method to study the tension points in plastics. It also makes very beautiful colorful images.
The set up:
Make the screen of your laptop white.
Put a plastic object in front of it.
Attach your polarized filter to your favorite lens.
Rotate it until the screen becomes black.
Press the shutter release button.
Thank you Kat.