A decorative, wearable system includes at least one decorative element mechanically and moveably suspended in a liquid by mechanical fixation elements and actuated by invisible mechanism(s). The liquid shares a substantially similar refraction index as at least one of mechanical fixation elements and/or actuation mechanisms.

A mechanical clock may include a platform with a bladder, a lower valve, an upper valve, and a compression device. The lower valve is in fluid communication with the bladder and a rare fluid source including a rare fluid. The bladder is also in fluid communication with the lower valve, and the upper valve is also in fluid communication with the bladder. A compression device is in contact with the bladder.

A mechanical clock may include a platform with a bladder, a lower valve, an upper valve, and a compression device. The lower valve is in fluid communication with the bladder and a rare fluid source including a rare fluid. The bladder is also in fluid communication with the lower valve, and the upper valve is also in fluid communication with the bladder. A compression device is in contact with the bladder.