WYSISYG, why go to all the trouble of surgery when you could learn to shapeshift! How about a few lessons with the legendary Japanese "raccoon-dog" and Master of Shapeshifting ...

Tanuki!

In Japanese folklore the Tanuki has great physical strength and supernatural powers. Like the kitsune (fox), it is a master of shape-changing and disguise and is a mischievous creature taking all sorts of disguises to deceive or annoy travellers. Standing by the road side on its hindlegs, it distends its belly (or rather scrotum) and strikes it with its forepaws. The Tanuki is also depicted in a fox like form, playing crazy and dangerous pranks with its enormous scrotum, which measures eight tatami mats!