What if you don't have an external flash? What if, like me, you blew all your money buying the cheapest DSLR you could get and so, for the time being at least, you're stuck with your on-camera flash? Well, that's what the Lightscoop is for. Basically, it's a mirror that clips in front of your flash and redirects the light up to the ceiling. (The Lightscoop site has some great before and after shots, so it's worth a visit).
Well, what if you're really cheap, like me, and don't feel like paying $35 for a mirror? That's where this instructable comes in.
Step 1: Materials (and the really quick and dirty way)
The main thing you'll need is a mirror. I went to the local craft supply store and bought a 4 pack of 3" square mirrors for $2 (hence the 50 cents). Other things you'll need, but you can probably find around the house, are thick cardstock or thin corrugated cardboard (1.5mm-2mm thick is perfect, but thinner is workable; I used a large shoebox that was made out of thin corrugated cardboard), superglue, and a small right-angle bracket. Double-sided tape was handy, but not really necessary, and gaffer's tape might be nice to cover the whole thing in the end, but I haven't done that yet.
My first attempt worked very well, but was a little too flimsy for regular use: I simply used masing tape to secure the mirror at a 45 degree angle in front of the flash. This worked because my Nikon D40 has a little lip in front of the pop-up flash into which I could wedge the bottom of the mirror.
In terms of the end result, this works just as well as anything I did later on (and requires a lot less fine-tuning). It does have disadvantages, though: aside from the obvious flimsiness, the location means that the flash can't be close with the mirror in place, so if you're switching a lot between flash and no flash you'll have to be taking it off and on constantly. Also, I have no idea if it will work on cameras other than a Nikon D40, but I imagine you can make it work.