An old dog bed sown with grass seed - going to try this in the spring - get a few containers, grow grass and dandelions and timothy and let the bunnies eat it, then swap out the container and let it regrow!
Neat Idea but I've heard rabbits can get bad diseases and Parasites from being kept on the ground. Rabbits can be the King of their bunny kingdom with this easy to make rabbit tower, they can shelter underneath too.
Rabbits are highly social animals, displaying genuine feelings of happiness and affection. Vice versa, they can display aggression, jealousy, and hostility in their social environment. These kind of behaviors are common in every family and community and as such, the rabbit is a symbol of working out social differences and getting along with our fellow society members.