There are tons of ways to make your own pinhole camera out of everything from a juice box to a pine nut. If you have a DSLR, you can make a DIY pinhole lens for it for just a few bucks. David O'Sullivan over on DIY Photography made this one using a cheap body cap and an aluminum can. Here's how to make your own. David put up a template you can follow to make things easier, so start off by downloading it, then use a ruler to draw a line directly through the center of the body cap. Cut out the ...