There's no shortage of great camera apps for your mobile device, but I love the simplicity by which you can transform your photos into artistic pieces. So when I saw a photo transformed by ToonPaint, I was immediately sold on the app. It takes a photo and changes it into a paint by numbers-like canvas.
To use it, import an image or take one using your phone's camera. ToonPaint will then turn it into a sketch, enabling users to color it in using a range of paint colors. You can zoom into any area you choose to paint, and save the image in high resolution for printing or just large viewing. The resulting image is an awesome bright, comic book-like print.