On Elf Yourself, from Office Depot/OfficeMax, your kids can upload photos of friends, family members, or pets, and the app will create a magical video of dancing elves. This year’s new twist is an Augmented Reality feature, which lets you can watch the dancing happen in the very space you’re sitting in. Tweens and teens will find this one particularly entertaining, as they can share their creations on social media.
To buy: Free, itunes.com and google.com. For iOS and Android devices.