Instant cameras are all the rage, but when you’re already carrying a high-end camera everywhere you go in the form of your smartphone, the idea of carrying around an extra gadget might seem like more work than it’s worth. You don’t have to choose between the convenience of your phone’s camera and the fun of having a tangible memento. KODAK’s new SMILE digital printer combines all the fun of using filters and image editing on your phone with the delight of having a printed copy of your photo. The handheld Bluetooth printer—which is roughly the same size as KODAK’s SMILE instant digital camera—lets you edit photos on your phone, then print your image instantly on 2-inch-by-3-inch sticker paper. Using the KODAK SMILE app, you can add Instagram-esque filters; rotate images and change contrast, brightness, and other characteristics; and add stickers, text, doodles, and borders. Most uniquely, you can add augmented reality elements to your photos, so that when you (or someone else with the KODAK SMILE app) point the app at the physical print, the image is replaced by a short video clip. The effect is something like the moving photographs in Harry Po...