I want soda cans that change color when they are cold.
Just so I can spot the one cold drink out of the dozen empty cans littering my desk.
Or perhaps someway to mark a can as belonging to a random person. Maybe clone the
way fountain drink lids have small bubbles to push down to identify different types
of drinks. 5 indention’s would be enough to cover 32 people.
But you’d have to get everone to agree upon their ‘number’ ahead of time.
Good luck with that.
In college we would ‘dent and turn’. Dent the front of the can just below the opening (allows you to drink faster with less foaming of the beer). Then turn the tab to the left or right. I never dent’ed but always turned to the right (2 o’clock). Always knew which beer was mine… Still do it to this day.