Brits are subjected to eating rubber-packed triangular sandwiches with salt-n-vinegar crisps every day until they die (or retire, whichever is first).

ENGADGET: Tesco music sandwich set to harrass Brits this week

To make a gadget called the Can Pump N' Pour, a circular hard plastic ring with a rubber cover that keeps the fizz in opened soda cans, Davison engineers went through 30 different versions with its own moldmaking machines before getting the shape right.

FORBES: Inside InventionLand