The most expensive item in the popular online role playing game, "Runescape" by Jagex LTD.
What they were used for was back in 2001 when they were released, players could "pull" these to get a much sought after "party hat." Since most players pulled them there are only a few left in the game still in cracker form. This explains the very high price of them. They are currently 800,000,000 (eight hundred million)-1,000,000,000 (one billion) runescape coins.
player 1: wow d00d look at my part hat!
player 2:nice but i got a Christmas cracker so there!