I'm sure your closest dealer can get them. But what type of switch is it? Is it a Contura type? Blue Seas, Sea Dog, Carling - those are a few manufacturers. If it's the typical rocker switch type, you can just pop the cover off and replace just that piece. Chances are your dealer has some (or another dealer for another brand of boat) and they might be all of about $2. The "#2" might pose a problem to find, but then I'm not 100% positive on that part, either. You might have to paint a #2 on it or get a local sign shop to make a little sticker (if it will stick to the plastic, that is - might have to roughen it up).