4 cups

Tea or coffee cups can make the deal! They are still used nowadays in the center of Vietnam (and perhaps elsewhere, do not hesitate to transmit infos!) in traditional songs. Folk bands still play them in some restaurants of Hue, the imperial city. It is there that we have rediscovered the benefits of tea! In Ireland, one'd rather use spoons …

They are rather difficult to play at the beginning: You place one cup in another and create impacts by knocking them together rhythmically. The bottom of the top cup strikes the inside of the lowest one.
Do not hold them by the handle (very difficult to realize! Especially for the jittered one!) but use group of two fingers (inch-annular finger (+ little finger sometimes) and index-middle fingers) and the palm of hand as a support.
It gives small crusty or razzle-dazzled percussions to sip. With or without sugar. Absolutely to be tested facing your friends if you really need a rest in a hospital: they'll be able to appreciate the freshness of your mental health and broad-mindedness.