If you think bunnies can't learn or don't like interactive toys, take a look at Clover here.
Here she is playing with an egg-cersizer toy. This toy was originally for cats. There are several adjustable holes to make it easier or more difficult to get the treats (pellets in Clover's case) out. I use the egg-cersizer every weekend, and she just has a blast with it. She's now gotten very good at it and can get all her pellets out rather quickly.
Similar to with my own dogs, it is truly fun to watch her use her brain, have enjoyment, and gain enrichment.
Edit: Here's a still photo I captured of Clover playing with her egg-cersizer toy.