It's always good to feed your tiggie high quality cat food, like Hill's science diet, eukanuba, medcal development. They are more expensive than some cat food sold in supermarket. However, they provide much more balanced and high quality food to your tiggie and in long term, you can avoid really expensive vet consultation fee and illness associated cost. Dry food are much more economical than canned food. One month supply of science diet cost less than $10...Canned food are much more expensive, but for kittens less than 6 months old, it's recommended to feed them canned food unless your kitten is excessively obese
For toys, you don't have to buy special toys, usually, they can find toys themselves, like strings, shoe lacet, boxes, etc...