Fill the bucket with water (you can use chicken broth, too) and some dog pets and treats
It takes a day to freeze solid, this will keep your dog entertained throughout the day.
Another alternative is to freeze water (small toys and treats) into a Zoku quick pop maker (you can buy plastic popsicle (frozen ice treats) alternatives anywhere really) and make a whole lot of these treats for a dog to enjoy throughout the summer season!
