If you are clever enough, any thing can be used to hypnotize someone. An easy out would be wiggling my paws in their eyes. An even easier cop out would be trapping them in my gaze. But what about something avant-garde? An elbow? If I was to pin them down, and slowly massage their shoulders with my elbows and guide their breathing, feeling my weight claim dominance over their weak body. My ears flop over and guide their gaze, and my mouth shapes the words as they listen so closely to the sounds that escape, and feel my breath warm their neck. At this point, they would be a puddle, clearly.