Abstract: A drive unit operates an applicator for massage, brushing, cleaning, and the like. The drive unit moves the applicator in a unique translatory motion in which the plane of the applicator maintains an unchanging orientation relative to the drive unit and has a lapping or stroking action on the body of the user which is effectively unidirectional at the body surface. This motion is very effective for many applications in which reciprocating or rotational movement is less appropriate, such as stimulating the blood circulation, brushing the teeth, and hair grooming, and different applicators as well as drive units are provided which are particularly adapted to accomplish these functions.