But since Cashmere High School students Jayden Rosanowski, Felix Strahl and Emilia Dybka launched their STAP Card last year, the clientele list has grown to include real estate agents and police detectives.
They even won two Young Enterprise Scheme regional excellence awards for sustainability and finance while developing partnerships with universities and billboard companies.
And the year 13 students did it all before they've even left high school.
"It’s taken off heaps, we’re getting interest from all over the country," said Jayden, STAP’s chief executive.
"We’ve got some big customers now, like Harcourts real estate agents and a police detective.
"It’s amazing to watch the business take off and to be a part of the ride,” said production manager, Felix.
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