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Pig bladder
Historically, the pig bladder had several additional uses, all based on its properties as a lightweight, stretchable container that could be filled and tied off.
Bladder there is airtight. It does not leak air.
膀胱 Vessie Urinary bladder Harnblase  Vescica urinaria  vessie de porc 豚の膀胱 



Barlloon Pieter Bruegel de Oude『Children's Games』1560
Germanic tribes is to dismantle the pig, using most of the sites in cooking, but the inedible bladder became the children's toys.



[クヨイ] kuy-oy.

Container
 
For centuries before the invention of the paint tube, artists used to store their paints in pig bladders
ライムライトの加圧装置 [Limelight]
Medical appliance

Clover portable regulating ether inhaler 1877    Vessie à glace 氷嚢
ball
William Gilbert used pig bladders in the manufacture of rugby balls.  Richard Lindon in 1880

traditional ceremonial uses

The pig bladder has several traditional ceremonial uses in Europe.

It is traditional during the festival Fasching in Bad Aussee to brandish inflated pig bladders on sticks.  1877

In Xinzo de Limia, Spain, inflated pig bladders are carried during Carnival.

Au carnaval de Binche 1948 in the Belgian town of Binche [バンシュ]
empty throne

Cooking
The bladder is used as a casing for several traditional food items, including the sausages known as ventricina and sobrassada.


アン・ベッシー(膀胱包み蒸し) vessie nienfanhsun "Mere Fillioux"
ブレス鶏の豚膀胱包み(Volaille de Bresse en vessie "Mere Fillioux")


干制猪小肚(膀胱) 鲜小肚(膀胱)

Musical instrument Bladder pipe
bian lian ("face changing")
painted pig bladders were used as face masks. 川劇 変面 [YouTube] []
Float