Two of my dogs love water ice cubes as treats. My Merry is allergic to most dog foods and dog treats. I have been taking her to a dermatology vet and we have found something that won't make her itch.
Rabbit & Potato dog food diet. She eats dry dog food, but she was chewing everyone's shoes because the poor little girl needed some chew toys. The vet recommended canned dog food (same kind of rabbit & potato) and put dollops of it in an ice cube tray and fill with water and freeze.
Merry loves her little meat ice cube treats. When the other dogs get a regular treat, she gets her meat cube. This solved her need to chew something.
Charleen and Cav's: Pippin (ruby male), Merry (b&t female), Luke (blenheim male) & Jolly (tri male puppy)