I've been using it for years on my tomato and cucumber plants—it's effective and it actually looks nice (to me). I bought a bolt of green on EBay for about $14.

I figured it wasn't a new idea, but it sure was new to me!

Do your tomato blooms self-fertilize without pollinators? If so, covering a whole row of tomatoes with tulle sounds a lot easier than bagging blossoms (which I've never done, because OP tomatoes seem to come true from seed pretty reliably without it).