I saw this pic on the canon forum. It was in a funny pictures thread but it seems like it could actually work if you are on the budget. http://de.fishki.net/picsw/032007/02/photo/26_photo_21695.jpg It looks like just a plain and simple fast food carry out box with a hole cut in the back so it can slip onto the flash. You can get many different sizes from restaurants and possibly at Ralphs or other food markets. If you cut the styrafoam lid off and replaced it with a sheet of paper or maybe someone else knows a material that would be better it looks like it would work. I'm going to try this out as soon as I can get a to go box and I'll post some samples.