two-part badge. The top being a brass crown and the bottom consisting of a silver flying body of Mercury (the winged messenger of the gods 'Jimmy') above a brass world and the motto ('swift and sure'). A regiment or battalion may maintain variations of the same cap badge for different ranks. These variations are usually in the badges' material, size and stylization. Variations in cap badges are normally made for: Officers: usually three-dimensional in design with more expensive materials such as silver, enamel and gilt. Most officers' beret badges are embroidered rather than metal or "stay-brite". Senior non-commissioned officers such as sergeants, colour sergeants and warrant officers: a more elaborate design compared with those worn by other ranks but usually not as elaborate as those worn by officers. There are exceptions such as the Welsh Guards, where all ranks wear a cloth cap badge. Officers wearing a more elaborate version to that of soldiers, made using gold thread and has a more three-dimensional design. The only exception to this is recruits in training who have to wear the brass (or more often "stay-brite") leek, often referred to as the "NAAFI fork", until they have passed out of training and reached their battalion will they receive their cloth leek. All ranks of the Special Air Service wear an embroidered cap badge and all ranks of The Rifles and Royal Regiment of Fusiliers wear the same metal badge. Some regiments maintain a blackened or subdued version of their cap badges as shiny brass cap badges may attract the enemy's attention on the battlefield. However, since the practice of British soldiers operating in theatre with regimental headdress (i.e. peaked cap, beret) has all but died out, the wearing of these has become much less common in recent years. Wearing conventions The cap badge is positioned differently depending on the form of headdress: Home Service Helmet or Wolseley Helmet: above the centre between the wearer's eyebrows. Service dress cap: above the centre point between the wearer's eyebrows Beret: above the left eye Side cap: Between the left eye and the left ear Scottish tam o'shanter: Between the left eye and the left ear Scottish glengarry: Between the left eye and the left ear Feather bonnet: Slightly off the left ear towards the left eye Fusilier cap or Busby: Slightly off the left ear towards the left eye Jungle hat (as worn by the Brigade