PhotoSketch is an internet-based program that can take the rough, labeled sketch on the left and automagically turn it into the naff montage on the right. Seems unbelievable but—as the video shows—it works:
According to authors, their software can take any rough sketch, with the shape of each element labeled with its name, find images corresponding to each drawn element, judge which are a better match to the shapes, and then seamlessly merge it all into one single image.