I enjoy it here very much, yet I found that slingshot launcher to be truly horrifying - like sick to my stomach. Squirrels are a pest, but I won't torment them or take advantage of their lack of intelligence for my own amusement. If people want to eat them, that's between them and their state legislators - squirrels have been game animals for a long long time.
To the original poster, sorry no one here wants to encourage them and I agree with that sentiment myself. Civilization encrouches on the animal kindom all the time, the solution isn't to put them up in man-made structures - it's to set aside land for them so they can live as they should.