Here’s another iPhoneography app going free today, Photomash allows you to take a picture, erase portions of the picture with your finger, and take another picture to occupy that space. Take multiple pictures within pictures to create fun, interesting, or humorous images. Photomash allows you to combine as many photos as you want. When you’re done, save your Photomash to share with friends on Facebook and Twitter. Usually this app retails for $0.99/£0.69 but today you can pick it up for free. Just click here to download.