Japanese hook size 6/0
yarn is a lace weight mohair in 5 colours
1 25g skein of each colour
each medallion 7.5cm in diameter
a total of 68 medallion (13-14 of each colour)

The pattern calls for little plastic rings for the center of each medallion. Two good alternatives are the plain plastic stitch marker rings by clover in the large size (13mm?) OR small tiny ouchless elastics available in large quantities for cheaper!

Ondori magazine ISBN4-277-11377-X