Step 1: The Bedding
Pet bedding gives your hamster something soft to walk on, something to keep them warm, and something to sleep in. I know my hamster loves to curl up in the corner completely covered in bedding. All you ever see is a little tuft of fur poking up from a big pile. Anyway, the bedding can pretty much be anything paper based. For example, cardboard, paper towel, toilet paper, or even Kleenex. I would not suggest regular paper however because it could cut the bottom of your hamsters feet. The paper based substance will also absorb the urine well. Make sure there is a good amount to cover the bottom and also for your hammie to curl up.
Step 2: Food, Glorious Food
Hamsters love fruits and vegetables. A lot. However they can eat meat, but only a bit at a time. I've fed my hamster tiny bits of steak, turkey, and roast beef before. You must make sure that it is unseasoned before you feed it to them though. When feeding fruits to your friend, they cannot eat acidic fruits (lemon, orange, lime, pineapple, etc.). For regular food to put in its cage at all times, however, I suggest sunflower seeds, pumpkin seeds, pine nuts, almonds, pecans, a mixture of dried fruit, and vegetables. Any of those, you can put in your rodent's food bowl. Remember that it must be unseasoned and unsalted. For the actual food bowl, you can use a small bowl. I put fresh fruits and/or vegetables in the bowl every night before I go to bed for my hamster to eat while he's running around during the night.