Then there are Japan's brokers and salarymen, who in addition to mixing gold flakes into their coffee, also used slithers of gold to liven up sashimi and sushi rolls.
It's been out in Japan for a couple of years, and has been marketed for such mundane tasks as reading time cards for beleaguered salarymen and storing healthcare records in hospitals.
In recent years some firms have appointed younger chief executives, in their 50s, but many salarymen are unwilling to work under managers who are younger than themselves or who used to be their subordinates.