Plant more marigolds around the garden - let the bunnies eat them.
Talcum powder, ground cayenne or other dried hot pepper sifted on and around the plants will also deter the bunnies.
I tried that deer-off spray. I just think the varmints acquired a taste for cayenne, garlic, and putrified egg solids. The air gun is a fun solution, but I work days.
The fence pretty much solved the rabbit problem. I think I'm going to have to make fully enclosed cages for next year's tomatoes. I can do squash, though. The only things bothering the squash are the squash borers...and the heat.