...shrinky dink!! Haven't thought of those in forever! Unfortunately they rarely bounce back EXACTLY as they were inked, but some get lucky and it's not too noticable. It all depends on what part of the body, how big,etc. Portraits are the worst, because they HAVE to remain perfect to continue looking like the person. Other, more obscure or freeform ones are more forgiving. Things that have natural variations, like in nature (flowers, etc) can get by too. Lettering is hard, unless it stretches uniformly, then it's ok.
Do YOU have any??? You rebel you...