Oracle of the Seven Sages Key [pdf]. A two-page list of the oracles with their numeric keys. I suggest printing it out on the front and back of 8.5" X 11" thick paper. Once you have learned to interpret the oracle, it is a useful summary that you can use in readings.
Oracle of the Seven Sages Cards [pdf]. Seven pages containing all the oracles (in English, Greek, and Latin, with their numerical keys), which can be cut into small (1" X 2.5") cards.
Astragalos Oracle Handbook [pdf]. A four-page draft translation of the ancient Greek Astragalomanteion. The oracle is obtained by casting five atragaloi(hucklebones), but dice can also be used.