The pennies in a can are really working for us. You just get a normal empty pop can and put several pennies in it. Whenever they bark, you shake it and say 'No bark!' It scares them enough to stop, but if they bark again... you just shake it again.
I would not use the spray bottle... it is a form of punishment. You don't want them to associate it with you, or else they will just bark when you are gone.
Good luck!! |