These commemorative Greek Worry Beads were sold to celebrate the 2004 Summer Olympics in Athens, Greece. They were purchased by me during a trip to Athens in 2001, in the lead-up to the Olympics but they are not official licensed.
See pictures for condition, as some of the decorative paint has worn off the Olympics logo, and the beads and chain are slightly tarnished. Suspect they are brass and may be polishable, but I am unsure. They come from a smoke-free home.