#1053: SodaSign

Today’s invention is a way to create a personal message inside a bottle of fizzy drink (or ‘soda’).

A labelmaker device is used to print a short message, such as a name, as a negative image on a transparent tape. This is then attached to the outside of any plastic bottle filled with gassy drink.

A small heat lamp (perhaps built into the labelling device) is briefly shone on the tape template, This activates nucleation sites on the inside of the bottle wall, so that whenever the cap is removed, the message is spelt out in bubbles on the surface.