I built a light box for photography, and it was so simple you could do it too.
1. Cut holes in 3 sides of a cardboard box- the holes should have a one-inch indentation on each side from the edge of the box.
2. Cover the holes with tissue paper. These will diffuse the light coming into the box, creating soft, evenly distributed lighting in the box.
3. Place matte poster paper inside of the box, curving it up the back until it reaches the top of the box. This creates the illusion of an endless, expansive background.
4. Use lamps placed outside of the box to light your scene. Using a more powerful light on one side or the other allows you to create soft shadows.
If you have a free afternoon and want to take some cool pictures, this is a cool and easy way to do it!