The bell kit is the primary instrument for the beginning percussionist.  As they develop their skills, they will progress to the infinite number of instruments and accessories that modern percussionts get to play.  However, to be a well rounded percussionist, they should have three things in their possession as they get older:  Drumsticks, Mallets, and a bag to carry them in.  Luckily many companies like Vic Firth, create an educational pack that is just perfrect for the beginning percussionist.  Link is provided below. 

If you are interested in purchasing the accessories separately please follow the recommeded brands below.

Recommended Brands:

Mallets:

Vic Virth or Mike Balter: search for plastic, soft plastic, or rubber

Drumsticks:

Vic Firth General SD, 5B, 5A (wood-tip, American Hickory)

Pro-Mark 5A, 5B (wood-tip, American Hickory)

Drum Pad:

Remo Practice Pad

Vic Firth Double Sided Practice Pad