Well, what do you do with things like these whenever you receive them? Give them to your kid, of course. So, I gave them to Evan and he had fun playing with them and figuring out how they worked. After a few days, though, he got bored with them, as kids do with most toys. I hadn't seen the magnets in a few days and I asked him about them. Much to my horror, he confessed that he fed one to our dog and the other one to our cat! Yikes! I am not sure what to do about it but I suppose all things come to pass.
Of course, as is the case with dogs and cats, ours normally don't like each other. But, oddly enough, ever since this happened, we have noticed that we can't keep them away from each other.
(Don't believe everything you read. We don't have a cat. However, our dog does seem to be attracted to the refrigerator lately. I need to look for those magnets.)