One thing Jim thought about was his clothes. Jim remembered when the old man used the balloon on him that his clothes were not affected. That could probably be solved by including his clothes when shrinking/growing himself.
But.
Could he change the size of his clothes on their own?
Only one way to find out!
He said, "control my clothing size. "
He put the balloon to his lips and started blowing deep breaths into it. FOOOOOOOOOOFFF... FFOOOOOOOFFFF...
he could feel his clothes were noticeably looser on him.
Another blow again.
FOOOOOOOOOOFFF... FFOOOOOOOFFFF...
He felt his shorts drop to his ankles taking his underwear with them. His shirt hung off him like a dress, covering him almost to his knees.
FOOOOOOOOOOFFF... FFOOOOOOOFFFF...
His too large shirt slipped off his shoulder. He realized that he no longer wore it as much as stood inside it.
His clothes were now the size of a giant boy's. And he was naked.
What did he do now.