Buy a large, old frame from Goodwill or a thrift store. String some twine across it and use clothespins (or mini clothespins) to display photos. This is great because you can change the photos as often as you want without too much trouble.
DIY frame wall. Old thrift store frames + spray paint!
Framed skeleton keys (on my Elissa Craft board) I first saw these at a resale shop but they were from Target... I found real antique keys on eBay and whipped these together in less than half an hour! They cost 3x's as much as the ones from Target - but I made them... ;-p