I found these great (and safe) pretty stainless steel bowls made in the USA. They even have non-tip ones which are perfect for ferrets! However, I want to know if it's safe or not because of the rubber rim at the bottom of the bowl. But, I would also supervise my ferrets while they ate to prevent them from eating the rubber rim. But just in case, I am just wondering....I tried a link, but it doesn't work...So you'll just have to look it up, the brand name is "Platinum Pets"