To carry out the "disappearing coin" experiment, one only needs a container with water, a metal glass and a coin. Witness it here!
Matches in Transcript
Caption 4 [es]: [Al bajar la posición de los ojos, la moneda desaparece oculta por el bote.] Caption 4 [en]: [Upon lowering the position of one's eyes, the coin disappears, hidden by the container.]