1. Background
You can use cardboard that is quite large, stick it on the wall next to the window. You can use sunlight to get natural light.
Source : Cooph
2. Reflector
Take a board, wrap it in aluminum paper in the kitchen. Voila! You have a new reflector.
3. Flash Diffuser
Confused when taking photos the light is too harsh? You can try making your own diffuser, KEE friends. Take a plastic container that you no longer use, cut it into an L shape. Take an adhesive tool, stick it to the camera. The result is that the light in your photos becomes smoother and sharper.