What are examples of oscillatory motion?

Oscillatory motion can be described as any object moving/swinging back and forth, moving up and down, pulsating, spinning, or vibrating. A few examples of each are:

swinging; pendulums, swings, metronomes

moving up and down/side to side; fixed springs out of equilibrium, seesaws, wave patterns (ocean waves, sound waves, radio waves, light waves etc.)

pulsating; light bulbs, speakers

spinning; spinning top, the Chandler wobble (the effect of a non spherical object spinning, AKA a free nutation)

vibrating; string instruments, protons/neutrons in a nucleus, the human voice/vocal cords, a tuning fork, objects subjected to their resonating frequencies.