Look at Ebay Item #290244117019, 10 of them for 10 bucks, digikey.com sells over 5,000 different styles of these, look for snap lever switches. Any appliance parts store will carry them. All electronics supply houses will have them as well. Should be under 3 or 4 bucks if you get it locally, Get the DPDT type if you want to run a stop light as well.
Scott