This is pretty straight-forward, so I'm mostly just uploading this as an inspiration project. Like an "Oh, why didn't I think of that!" kinda thing. This is really great if you have a ton of pictures that you want to display, but you don't want to have to deal with frames or poke a bunch of holes in your walls. Also, if its a one day decoration; you could use popdots or gluedots to hold it up instead of pushpins. If you don't have a polaroid camera, but you really want to use polaroids on your garland; try using a photo editing program like toycamera analogcolor.