I subscribe to BuzzFeed's "This Week in Cats" newsletter, which is always amusing. One of their linked stories this week is about how you can make frozen cat treats, and it's wonderful with how to's on popsicles, foodsicles and kitty ice cream, all designed to pamper your cats with cool but safe treats.
https://www.mnn.com/family/pets/stories/how-make-frozen-cat-treats