I tried bird netting and it didn't work. I have deer fencing and 2x2's and that seems much better, but I do like you idea of making a dome STL. I'll try that next year.
My problem is my neighbour has 6 or 7 oak trees in the 100 foot height area and because I have a constant west wind blowing, they all end up on my lawn.
He has tried to put up snow fencing and goes out each day with me to try to blow them away, but unless you're ther 24 hours a day it's a never ending fight.
I'm grateful that he does try something, and I would never let him cut them down, unless he's willing to make me a new dining room suite.......