Younicorn might be the weirdest. It turns anyone into a glowing, psychedelic unicorn, and it's based on the simple philosophy that everyone looks better with a long, pointy horn growing out of their head. Younicorn is to photos what Cornify is to websites, but better.
There are several backgrounds to choose from, including sparkles, rainbows, and an array of space-themed scenes. You can place anyone - even your dog, which I find totally hilarious - into one of these backdrops, and position a glowing horn on their forehead. All this magic can be yours
For extra Younicorn fun, check out a video of the Younicorn team enacting a real-life version of their app, after the jump.