How to make fun toys for my rabbit?

I'm not exactly sure if this helps but i use to have hamsters and this similar issue arise. To resolve that matter i attached food to plush and placed it together with them. That may have help but i soon found out that they were both of the same gender and needed and opposite gender companion. As soon as i bought and brought their new companion the both of them got real happy and started making some wierd hamster noises. Two months later, from 3 hamsters , developed 5 more. So i'm not sure what your pet rabbit require but i suppose you will have to go through trial and error like i did.