First off you need a green screen for filming. I used the most basic green screen I could find – large green paper off the roll of paper that we have hanging around in our hallways. I know Kathy used green plastic table clothes that she purchased at the dollar store (just make sure they aren’t too thin so the items behind them don’t come through). Others have used green fabric draped from the ceiling to the ground. The trick is that it’s chroma key green.