Before you go spending way too much money on a piece of plastic to hold your iPhone, keep in mind there's almost always more than one way to get the same thing for a lot cheaper.

Admit it, you've still got cassette tapes lying around.  Heck, my car stereo is old enough to still play them!  Well, where there are cassette tapes, there are cassette cases; and you probably have at least one case lying around that lost touch with its tape long ago.  Now you have a reason to keep that empty case around!