If you have not enough time to spare, or your family has a tight budget, this costume would solve your hassles and it's not only or Joey Pigza fans.
Just thread a string through a key (it can be either made-up or real) and wear it as a necklace. Also,wear everyday clothes and fuzzy slippers (just like the real Joey Pigza wore to a special ed room in the novel Joey Pigza Swallowed the Key).
Don't forget to apply bandages all over your body!
Thanks to a Joey Pigza fan for this easy and fun idea!