So I have to ship my weight scale...
... and as with all shipments, I have to weigh it...
I leave you, the omnipotent League community-that-has-nothing-to-do-with-shipping-weight-scales to solve one of the greatest paradoxes the universe has ever known, for me.
Although I'll leave you with a few options to delve into.
RE Option 4: If you're in zero gravity, nothing you put on the scale has weight, so the only weight the scale could read, is itself. "But then the scale would be weightless" you say? Au contraire! Weighing the scale with itself is parodoxically impossible. Therefore it has no self-weighed weight to begin with. Therefore, there's no weighable weight that can be taken away by zero-gravity. Since zero-gravity can't take away the weight, the weight remains in zero-gravity. -Q.E.WUT. :D