Jon frantically looked around the room. Why aren't there any tissues around when you need them? he thought, before his eyes landed on the paper towel dispenser. Good enough.
He jumped up and grabbed a paper towel, catching his sneeze in time. Then, suddenly, the paper towel began to change right in his hands. When it stopped morphing, it became a box of tissues.
"How the hell are you doing that?!" asked the "new" Karyn, who still had the mind of the boy she used to be.
"I ... I think when I sneeze on something, it changes." But why did the boy become Karyn and the paper towel become a box of tissues? He thought for a moment and realized that the boy and the paper towel became whatever he was thinking of at the time.
Now he definitely needed to tell Karyn what was going on.