I bought mine at Walgreens for about $2 /bottle. I have not had them in the water but they look great. I paint them up similar to the store bought ones, leaving the backs the color of the metal. I have found that gasoline (and most likely polish remover) removes it so if they chip I will just RE pain them. Make sure you buy some beer when you buy the polish so you don't look too eh hem, "feminine" buying a dozen bottles of nail polish. LOL. I have some lowes spray paint that I have used as a base color on some but I don't really know if that is necessary.