If you have a white poster board you can use it as it is and put a lamp close to it. You could also cover the poster board with aluminum paper and shine a flashlight or use the lamp with it.
sunlight and reflectors anything white nd shiny might work. also background and subject contrast might help.
Use a big piece of cardboard covered in tin foil its cheap and easy to use.
the best lighting to use is sunlight
Flashlights work well.