DIY Flash diffuser for point-and-shoot digital camera

There aren't many solutions for softening the harsh flash of a point-and-shoot digital camera.  I've tried holding a piece of paper in front of the flash - and that works to a point - but I get inconsistent results, probably because it's hard to consistently angle the paper correctly.  There's a commercial solution, but it costs $20 and the manufacturer actually makes two models to fit different cameras, which means it may not be easily interchangeable from one camera to the next.

I show a way to cut a medicine cup to hold a piece of vellum or paper at a consistent angle in front of your flash. 

Step 1 Materials

*A medicine cup with a bottom diameter smaller than the diameter of your camera lens (measured where the lens enters the camera body)
*A squarish piece of vellum about 2 inches on a side.  I imagine other translucent material would work too, but vellum works well because it's lightweight and stiff.  I used a piece salvaged from a fancy invitation.
*Clear packing tape
*A piece of paper about the size of a 2 to 3 inch post-it
*Something to cut with (scissors, exacto knife)