Liquid Fence. Can be found at Home Depot or Lowes. Works well if you spray areas every other night. Beware, it stinks!
This is a comprehensive article with many choices. Hope it gives you some ideas. http://www.wildlifeanimalcontrol.com/rabbits.html
trap and relocate to stew pot.
Cayenne pepper oils sprayed in the garden will prevent them from destroying plants, but the best way is a wire fence set down in the ground 6 to 8 inches around your garden, if you can do that. Some areas a fence is not a choice.