diabolo

Dear All,

with children life is full of challenges... My 6-year-old asked me for a diabolo (it's obviously in fashion at his school). I've asked other parents and done some research (local stores), but couldn't find any diabolo around. To explain: it's a plastic toy consisting as if of two cones joint together that you cast and try to catch using a cord held tight in your hands. Help needed especially that Santa is neigh.
Thank you in advance.