I saw this in an email someone sent me and gave it a try. You need clear plastic cutlery and wine glass, a laptop with a pure white background, scrunched up plastic (the type that covers some fruits etc) and a circular polarising filter. Camera on a tripod in portrait mode f8 1/60th and about ISO 400. The scrunched up plastic goes in front of the laptop screen and by turning the lens filter, you get different effects. 1. 2. 3.