Saw this in store (Merthyr Tydfil retail park) and thought it was good value and might help somebody looking for a cheap replacement nozzle.
Great value hose connector set. Includes 4 easy-to-connect hose fittings. Allows controlled and accurate watering all around the garden. Keep your plants perfectly hydrated all year round with the Wilko Functional Hose Connector Starter Set. This great value set contains 4 easy-to- connect fittings allowing controlled and accurate watering around your garden. Set includes 1x 1/2 inch hose connector, 1x 1/2 inch waterstop hose connector, 1/2 inch and 3/4 inch BSP tap adaptor and an adjustable hose nozzle.
Can't seem to get the url link to work properly but it's this http://www.wilko.com/hose-pipes-sprinklers+spray-guns/wilko-functional-nozzle-starter-set/invt/0329234