Although many people prefer a simple white cup for tea leaf reading, there are also traditions concerning the positional placement of the leaves in the cup, and some find it easier to work with marked cups. Beginning in the late 19th century and continuing to the present, English and American potteries have produced specially decorated cup and saucer sets for the use of tea-leaf readers. Many of these designs are patented and come with instructions explaining their mode of use. Some of the most common were those that were given away with purchases of bulk tea.
There are dozens of individual designs of fortune tellers' cups, but the three most common types are Playing Card cups, Zodiac cups, and Symbol cups.
Playing Card cups - These cups carry within their interiors tiny images of a deck of scattered cards, either 52 cards plus a joker, as in a poker deck, or 32 cards, as in a euchre deck. Some sets also have a few cards imprinted on the saucers, or the saucers may contain brief written card interpretations. The playing cards permit the reader to creatively relate cartomancy to tasseography. The Playing Card cup is sometimes known as the Cup of Knowledge. (Information courtesy of Wikipedia)