#1390: JawJar

Today’s invention is a development of the standard, screw-threaded jar.

All sorts of these vessels exist, in a variety of materials. The idea is to engrave onto the helical surface of the container’s screw thread a groove like the surface of an old LP record.

This would be ‘played’ by a corresponding needle set or moulded into the threads of the lid, whenever the jar was being opened.

With the lid shaped to act as a loudspeaker, such a device might issue a brief warning about the misuse of medicine within or to those about to steal one’s milk from the communal fridge. It might simply say ‘Thanks from Pepsico.’

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