
MANUFACTURED GOODS—Dave Gross, who donated $250,000 to Rancho Campana High School’s makerspace, holds some of the fidget spinners that students make in the high-tech workshop.
Some might have called it a charitable donation when venture capitalist Dave Gross invested $250,000 to launch a company run by teenagers. It was a way, he says, to give high school students an early start in the world of entrepreneurship.
But in just a few months, RCMakes, the nonprofit business Gross helped a group of students start this year at Rancho Campana High School, has earned enough in profits to “about break even” after deducting startup and insurance costs, he said.

WHEELS— Dave Gross donated a truck as well as money to Rancho Campana High’s makerspace.
That’s largely due to the sales of “fidget spinner” toys that the 15 students in Gross’ after-school entrepreneur class designed…