"Well then Genie, I wish my hair was naturally green." You don't want to risk your life for something major right now, why not test the waters?
The Genie laughs, "Yes, my child, your wish is my command," then subsequently snapping his fingers, causing a bright flash of light to wash over your body, leaving you with a strange sensation.
"Anything happen?" You ask curiously, trying to pull down your short bangs to catch a glimpse of the change.
"Well go ahead and look," the genie retorts, snapping his fingers again and in another large flash of light, a beautiful, large, ornate mirror appears before you. You run up to it excitedly, seeing your still black hair on your head, begin to change hue, slowly becoming a deep green color, and as your just as your head finishes, each and every small hair on your arms and legs follow in suit. Soon each and every hair on your body is the green color you had pictured.
You turn to the genie, ready to praise him for his work. "OOK-OO-OOK" You shout and then immediately recoil, alarmed by the gorilla-like sound escaping your lips. The genie laughs again, gesturing towards your arm. You glance at your arm and let out another bestial shriek, it's covered completely with the same green hair. You turn towards the mirror and freeze, because in the moments you had turned from it, you had transformed from your 17 year old human body, into a full blown, 7ft Sasquatch covered in thick green hair. Luckily your clothes grew to fit your new body, with the exception of your shoes which seem to have disappeared from existence, leaving only your new giant, Bigfoot feet to replace them. You stare at your new ape-like face, with large protruded brow-line and thick lips.
You angerly shriek at the genie to try and make another wish but all that comes out are your loud simian sounds. The genie laughs at you, "Well you wanted to change your hair so I just happened to also change you into something with alot of it. But since you won't be making wishes anytime soon, I guess I'll enjoy my life as a free man." You try to swing at him with one of your big furry mitts, but he disappeares in a flash, causing you to instead knock over the nearby shelf, spilling its contents onto the floor. You begin to panic, realizing that you gotta search the store, because something has to be able to fix this mess, right?