Cocktail shaker

Cocktail shakers are used to make gnome drinks. They are also used in the quest Recipe for Disaster to concoct a Dirty blast. The shakers can be bought from Heckel Funch for 33 coins, but it is advisable that it is bought from Hudo, or just picked up from the table near him.

RuneScape Classic
In RuneScape Classic, failing to pickpocket non-player characters (NPCs) would cause them to attack the player instead of simply being dazed and taking some damage. During combat in RuneScape Classic, a player could not run from combat for the first three rounds. This lead to many players killing an NPC that they were attempting to pickpocket before much Thieving experience could be gained.

However, at this time, the Cocktail shaker could also be drunk from, even when completely empty. This lowered a player's Attack level, much like drinking wine or many other alcoholic beverages in RuneScape. Thus, a player would hit their mark much less often, allowing one to pickpocket a single NPC longer before accidentally killing one. This was eventually fixed by Jagex before the release of the current version of RuneScape.