This reminds me of when my father was into foreskin stretching. He started with ping pong balls, making the objects bigger and bigger until he could fit an entire basketball. Eventually he worked his way up to the point where he could fit me in his foreskin. He would drape his foreskin over me and pick me up, and spin around in circles and yell out “SWING BATTER BATTER, SWING!” before throwing me across the room. Good times lol.