I'm not sure why this image is supposedly Photoshopped. Groomers have been "decorating" dogs and cats for years, and with designs much more intricate than Pikachu. An image search for "cat fur dye", or something similar, will return results for many very colourful and extremely patient cats. As long as the dye is safe for the animal and the process isn't stressful I don't have a problem with it... I'd rather see an animal loved and tie-dyed than homeless and in an overcrowded shelter.