I love bokeh and wanted to incorporate it into some upcoming holiday-themed beauty shoots. Well, I didn't want to shoot in the cold and I really didn't want to buy strings of lights (or generally spend any money at all) so I put together this great backdrop with basically just tinfoil.
I recently wrote an article about 8 Reasons You Should Buy A 50mm f/1.8 Lens and one part was about using it with the "El Bokeh Wall." What's an El Bokeh Wall? It's using some aluminum foil to add beautiful bokeh to the background of your photos. Here's a full tutorial on the technique.
Flickr user Twin-Reverb made this nifty DIY flash diffuser using a cardboard paper towel tube, a paper towel, and some aluminum foil.