Nishio Shoten Body Brush
$19
In Japan, tawashi scrubbing brushes are generally used for housecleaning, but these tawashi, made from natural fibers, are intended to be used on the body. Lather up some soap and gently brush the skin to experience a massage-like effect that simply cannot be obtained using sponges or towels.
Available in three kinds, so pick the degree of stiffness best for you!