R.D.
Does she have a work permit? Most places, it's against the law to hire anyone under 15, and 15 year old's have to have a work permit. 16 is the general age employment starts without a permit.
I'd get her into babysitting, walking dogs, being a mothers helper, helping with yard work (grass cutting, weed pulling, etc), assisting the elderly (gathering mail, stuff like that), or house keeping.