So no to eating ice cream but yes to taking lightsabers from dolls? He'll take his other self's word for now, as he grabs the hilt. It expands in his hands, thankfully unactivated. It appears to be his old saber, Sabine's now. His again?

"Huh," he says, which seems like an appropriate response to all of this.

"It's kind of hard to imagine Master Kenobi ever being that young... wait, is he here?"