I finish out my bodies with a 7" variable speed buffer, and 3M Finesse-It II followed by 3M Perfect-It II. If you read the packaging label you'll see what specific buffing pad to use with each product.
CAUTION: Be sure that the object you are buffing is secured and immobile - buffing with a motor-driven device will instantly turn your instrument into a projectile if it is not secured properly.
I attach my bodies to a wooden shaft, and this is firmly clamped into a vice. I can rotate the body as needed