For first-time rabbit owners, often, one of the most helpful things they can get are a list of supplies. Here's a rundown of the basics that you'll need for your bunny, along with a few extras.
Cage: This is a given. A rabbit cage should be large enough so that your bunny's ears do not touch the top, and so that it can lay down in any direction. The bigger the better, of course. If the cage has a wire bottom, be sure to supply a solid surface for the bunny to sit on.
Resting Surface: Your bunny will appreciate it if you supply a comfortable place for it to rest. Many pet stores sell straw mats for rabbits to rest on, and most rabbits find them rather comfortable.
Litter Box and Scoop: Contrary to what you might think, rabbits are able to be litter box trained. They naturally have a tendency to use the bathroom in one spot anyway, but if they become used to the litter box, it will make cleaning much easier for you. It's recommended that you have at least two boxes―one for the cage and one for the room in which your rabbit will be roaming when it gets out for exercise time. If your rabbit will be in more than one room, you may need more than one litter box.
Food Dish and Rabbit Food: Pellets are an essential part of a rabbit's diet. Keep a fresh supply of pellets available in a dish at all times.
Water Bottle: Everyone's gotta get a drink once in a while, even bunnies!
Carrier: A small pet carrier might not seem like something that's essential, but if your rabbit needs to take an emergency trip to the vet, you'll be glad you had one. Your rabbit and you will find it much easier than putting him or her in a cardboard box.
Hay and Hay Rack: Timothy hay is the other rabbit diet staple. Make sure your pet always has fresh hay, and you'll need a hanger or rack of some sort to put it in, too. Most pet stores have a variety of ways in which you can hang a hay rack of some sort in your rabbit's cage.
Brush: Whether you have a long-haired rabbit or not, a brush is important. Rabbits can get hairballs, so it's good to get out any extra fur from their coat. Long-haired rabbits need frequent brushing, so keep this in mind.
Toys: Bunnies are intuitive creatures, and they need entertainment. It's not only good for them mentally, but physically as well. A rabbit's teeth are constantly growing, so they need wood chews in order to wear them down. Most pet stores carry a variety of bunny-safe toys. Make sure your bunny has toys both inside and outside its cage. If your rabbit is running about and has nothing to play with, it will 'play' with your furniture (i.e. chew it)! You can make common items, such as cardboard boxes into bunny toys as well.
Rabbit Book: Whether you're a seasoned rabbit owner or new to rabbit care, having a book on hand is important. It'll have plenty of tips and tricks (including a list similar to this) to help you care for your bunny.
And don't forget to keep your bunny happy by giving him or her a carrot once in a while!