Chewable toys for the gerbils and hamster

Tom and Jerry are the gerbils that my kids have. They also have a Mickey, the hamster. The three uses their chewable toys. My husband bought new colorful sticks for them to chew.  We will see how long these chewable sticks will last. My kids really love their pets. They take care and play with them everyday. Do you have pets too? What kind of pets do you have? Do they play with their chewable toys?  Do you buy toys for them too? The gerbils and hamster play with their toys at the same they eat them too. It is great for their teeth to stay healthy.