Dogs, puppies, cats and ferrets seem to be the worst offenders. Protect your pet. Here is a short list of some of the items that have been removed from animals. The inexpensive ones are real problems since pets bite off chunks of them and swallow. We don't have enough to retire yet, but we find lots of these in animals we examine.
Cats like to swallow thread.
These are especially bad because of the sharp points which can do additional damage in an animals body. Besides the blockage potential, these items can get stuck around and under a cats tongue. Their tongues have little barbs that make them pretty much a one-way street. When a string is stuck under a cat's tongue, it can be dangerous because the intestines can pull on it until the sting actually starts cutting into the intestines. Other foreign bodies we have removed include Easter basket grass, the stings that come wrapped around roast beef and turkeys, dental floss, panty hose, socks, and pieces of carpet.