Abstract: A soap bar forming apparatus includes a generally hollow housing having an aperture extending therethrough and a removable base. After soaking a plurality of soap particles, or chips, each of which is the residue of a substantially used soap bar, in water to allow the soap particles to become soft and pliable, the soap particles are placed in the housing with its base attached thereto. A plunger, or compressing element, is then inserted into the housing's aperture and manually displaced therein so as to compress the soap particles which adhere to one another in forming a composite bar of soap with a shape defined by the housing, its base, and the plunger. The base is then removed from the housing to permit the composite soap bar to be removed from the housing by continued displacement of the plunger. The base and housing may be coupled by threaded engagement, a flange and slot arrangement, or by virtually any conventional means.