This is a simple addon I made for my camera's popup flash to provide better illumination for macro shots.
What you need:
White piece of cardboard
Fold the cardboard to fit around the flash and cut an opening so that it can slide onto the flash unit.
Cut around the cardboard at a point slightly less than the length of your lens (about a centimeter) leaving the top section as a hinge.
Adjust the angle so that it is pointing just in front of your lens.
Cut off any excess if needed.
Glue everything together.
Take some pictures and enjoy.