(Inspired by, and mostly stolen from, bag. Thanks!)
"This can't be left with Jon but I would like to start a little chaos with it!" Sarah said as she shifted the stone back and forth in her fingers. She finally decided what to do.
"I wish that I could start a wish chain that passes a special wishing power, just like this stone, from person to person in the way I'm about to describe," Sarah collected her thoughts before continuing. "Each person with this power would have their next wish granted, but then the wishing power would leave them and pass on to the target of their wish. That means if somebody makes a wish for themselves, they get the wishing power back again and can make another wish!"
Confident that she had wished for exactly what she wanted, Sarah added, "I wish that I was the first person in the wishing chain I just invented!"
With a huge smile on her face, Sarah knew exactly the wish she wanted to make next - and who it was to be about. She put the rock back on the dresser and said, "I wish..."