fun things for a 14 months old

what activities yoy think is fun to do with a 14 months old?

They like building with blocks, pretending to talk on the telephone, roll and bounce balls, ride ride-on cars and push push-along walkers. Bounce on the trampoline, and slide down slides in the playground. Sandpit play. Noisy toys with push buttons, and trying to draw. Hitting balloons around.