Rabbits can get bored too, just like people. They like to chew on stuff like furniture or their cage if they don't have wooden toys. If you give them any wood make sure its untreated by chemicals. Here's a list of things that are great toys for rabbits to play with. You might not even need to buy them if you have them laying around the house.
Fruits, Vegetables, and Plants Safe For Rabbits to Eat.
There are lots of things that rabbits can have as treats, but there are still some things that are bad for your rabbit. You can also buy things like hay or other treats like yogurt chips in stores. Here's a list of things your rabbit can have as a treat.
Good Things:
Bad: