My newest obsession is Poladroid. It's software you can download to make your photos look like authentic Polaroids. While it's not exactly saving Polaroid from extinction, it's a fun little way to make photos a little more interesting.
Here are some of mine:
The cropping doesn't always turn out great, as you can see from Roy's head being cut off in our wedding picture. But he's still cute even with half a head.
There's a Poladroid flickr group here. So get out there and get Poladroiding!