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 2:nice but i got a Christmas cracker so there!
2)Sis is such a glutton that he always has a case of the chrisimas crackers.
3) Excuse me, I just christmas crackered.
Contributor's footnote: A merry Christmas to one and all.