Just recently, I posted about the Instacube, a Kickstarter project that allows you to more easily show off your great (or at least well-filtered) photography work on Instagram. But it turns out you don't need a whole cube to do that. With the proper tweaking of IFTTT (a tool we at TUAW also love), you can set up Instagram images to display on your Apple TV's screensaver, making for a fun party trick or just a cool way to show off the pictures you've been taking. All you need to do is save your Instagram pictures to Dropbox, and then share that folder out to the Apple TV, and boom, instant streaming screensaver.
There are a few hitches, unfortunately, and the biggest one is that your Apple TV won't automatically pull in new images, so you'll have to sync folders after you add (or remove) any images yourself to see new pictures. If you want to pull in pictures from more than one Instagram user, you'll also have to set up multiple IFTTT recipes, one for each user you want to watch. But the good news is that you can pull in from any other photo feeds as well -- maybe a better solution, to show off pictures from a party, for example, would be to use a Flickr tag so that anyone can post to it.
At any rate, it's cool idea for sure. IFTTT is a really powerful tool, and hookups like this can really give your Apple devices to some new and interesting uses.