Cool Pup Cooling Pet Bowl A reviewer of the Cool Pup Cooling Pet Bowl ($20) said: "I was amazed after putting the insert in the freezer for a few hours that the water stayed cold and the insert was still cold when it was time to refill. This will be a perfect solution for those hot Summer nights. The bowl is also very sleek looking and made very well." Image Source: Amazon Cool Pup Cooling Pet Bowl $20 from amazon.com Buy Now