He is going to eventually have a bunny buddy (he is already fixed and the shelter I will get a female from fixes em before they give em to you) but right now the cage isn't big enough for two bunnies (he has a large cage and a 4 foot by 3 foot run attached to it that he always has access to) but I'm hoping to get a nother couple levels in his cage before I bring another bun in.
And he has cardboard boxes... he has some with hay in them, some tunnels, some homemade "bunny cottage" with two levels, a little maze and one box that he seems to like flattened.