Tank and reels suitable for 120.
Graduates for measuring chemistry
Thermometer
Timer of some kind
Changing bag or darkroom for loading
Film clips for drying film
You might also want a film squeegee - although some people suggest it's better not to use them.

Scissors for cutting negs into strips
Something to put your negs in (as in filing sheets and a folder).

Developer
Stop
Fix
Wetting agent
Something to store the chemistry in.

Have fun!