I want a group of freelancers on a spaceship to stop a star from functioning. No government funding and they have to get creative. What would be the cheapest way for them to achieve this? I know we are talking about a STAR and I could just throw a black hole or another star nearby or whatever, but I want something clever. A plausible futuristic tech that can get the job done (maybe draining, flinging a meteor with a shitload of iron into the heart of it) with a bit of engineering ingenuinityingenuity. It doesn't have to be drasticdrastic; it can even take a couple of years.
They also have to do it discretelydiscreetly, (no violent explosions).
I'm all ears!