I've always been amazed (despite being someone who's not easily amazed by Science Facts) that helium and lithium (and, less amazingly, hydrogen) were produced i

I've always been amazed (despite being someone who's not easily amazed by Science Facts) that helium and lithium (and, less amazingly, hydrogen) were produced in large quantities in the early universe, long before there were stars. So I'm envisioning a market for boutique "Big Bang" lithium, guaranteed not to have been produced in a star. It makes your engine run so much more smoothly.