Photo manipulations are a popular art form where photographs are digitally altered, combined, and rearranged to create new and often surreal images. They can become very complex, but as artist and photographer Stephen McMennamy shows in his "Combo Photos," sometimes creating a surreal image is as easy as sticking two photos together. As you can see, McMennamy makes no attempt to hide the fact that these images are created by digitally slicing two photos in half and putting them together to form a new image.