Are there any toys you should avoid buying for your puppy? - Advanced Animal Care
Puppies have puppy teeth and with puppy teeth comes shredding of toys and other items in your house. So, you want to get something that is pretty bulletproof so that they can't rip it apart and take out a squeaker that they can potentially swallow. The same goes for stuffing. You want to get something that they want to chew on, but won’t really hurt their teeth. Different types of little Nylabones and Kong toys are all great to keep them entertained and are pretty indestructible.
You can even add some flavors inside, like peanut butter, that will make it a little more enticing to them. But I definitely don't recommend anything that you don't want the puppy to chew on, being something like a shoe, string or things you may not want the puppy otherwise gravitating towards. I wouldn't offer toys along those lines.