DIY Ice Lick or Dogsicle for Dogs. Neat concept from Cool Dogz that is super adaptable - Fill a bucket with water or chicken/beef broth. Add dog toys and treats. Freeze the bucket until it is hard.
"bullystick-pupsicles DIY dog games" I think I would make the bully stick shorter so they have to work at the ice for most of the reward.
DIY Frozen Chicken Broth Dog Treats
Dogs That Look Like Other Things