I have found that my piggies enjoy any kind of hidey house or cozies. They love sleeping in different ones. They also enjoy those large cardboard colored tubes. They chew them up which is good for them. Keeps them busy and its good for their mouth muscles and teeth. They also enjoy non painted baskets that I put a pillow in where they hop into to rest and also chew on the baskets. once again, I Keep a supply of different houses to change from time to time to keep it interesting for them which they love. They were never into wood toys or bird toys. They also enjoy a paper bag. Throw one in the cage from time to time. You can put a treat in it or some hay. They love jumping into it. Some people throw in toilet paper cardboard rolls. Also you can roll up a piece of paper and see if they enjoy that. Its a matter of trying different things and seeing what they like best. I must have spent hundreds on them, alot of it was waste except for the ones I mentioned above. Good Luck. Dont forget, although its not a toy, Good Hay, they spend alot of time munching on that.