Jon's power to change anything

At that night Jon was thinking about how he couldn't reverse the changes made by the stone. Then Jon got the idea Jon held the stone and said "I wish that I had the unlimited ability to change anything." The unlimited ability allowed him to reverse changes. Jon tried to test his wish, so he took a toy and tried to change it into a dollar then he tried to change it back and it worked. Then he tried to change into Karen. Jon's hair got longer and blond and he grew breasts. Jon's lashes got longer and his body got slimmer and he got all other female body parts. Jon changed back into his orginal form. Jon decided to change into something else, but what?