Firegrub Heads are a series of quest items dropped by Firegrubs during the Mimicology quest "Firegrub Study" (CY0004) and assigned by Cypress. Player has to collect 30 of those items to get 30 XP and a Sprocket which shows informations on the Firegrub. During the Mimicology quest Blowgrub Study (CY0030) Player has to collect 20 of those items to get 30 XP and a Sprocket which gives information on the Blowgrub.