The eunuch flute, onion flute, or mirliton is a membranophone that was in use during the 16th and 17th centuries. It produces a sound akin to a comb and paper and is still manufactured as a toy.
A swazzle is a device used to produce the distinctive shrill voice of Punch in a Punch and Judy show. It consists of a cotton tape "reed" kept taut between two curved strips of metal, held in the mout
Eunuch flute
…Kazoo Swazzle OD staff (2013), "mirliton", Oxford Dictionaries, Oxford University Press, archived from the original on March 4, 2016…
A traditional Punch and Judy booth. A swazzle was generally used by the Punch 'professor' in order to speak in Punch's characteristic voice.