<Tr> <Td> </Td> <Td> The sound of a Party horn Party horn unfurling </Td> </Tr> <Tr> <Td_colspan="2"> Problems playing this file? See media help . </Td> </Tr> <P> A party horn (or party blower) is a horn formed from a paper tube, often one that is flattened and rolled into a coil, and which unrolls when blown into, producing a horn - like noise . The item is not known consistently by any term in English, also being known by a number of local variations, neologisms, and individual terms, often containing variants and synonyms of blowing (puffing, blow - out etc .) and noise (whistle, squeak etc .) </P> <P> Modern variations have a plastic mouthpiece, which prevents the swift degradation of the device from exposure to the moisture of the mouth . Often the paper tube contains a coiled up metal or plastic strip that rapidly retracts the horn when you stop blowing on it . Others have a brightly colored feather attached to the end which vibrates in the outgoing air flow as the horn is blown . </P>

What are those things you blow into at parties