As I have mentioned before, Photojojo rocks. They always have something in their shop that has my mouse hovering over the checkout button (right now, it's this brilliant thing). But did you know that they also have a great newsletter that is chock full of fun photo-related projects? My current favorite is this awesome polaroid pop up card, which allows you to personalize the snapshot to include your friends, family or best portfolio pic.
Check out the whole DIY here and the goodies in their shop here.