Iron sickles can be purchased from Gardener Gunnhild on the island of Miscellania for 15 coins each. They can be wielded as a weapon, however in the past they could be used to cut weeds and increase the player's favour in their kingdom. Gunnhild now sells rakes as well to make up for this change. Players must have completed the Fremennik Trials quest to get to the island of Miscellania.
An update made Gunnhild stop selling iron sickles. Players that would still have these in their banks were still able to trade them, this generated a new discontinued item at which made many players begin trying to buy them for just a few coins, whereas others that had them were trying to sell for over a million coins. Jagex later posted on the forums that players were able to buy them again, as they did not want to create another 'rare' item. This update coincided with the release of the Farming skill.