others at which time a new custom grip will be temporarily imprinted alternatively the grip may be an extrusion defining an outer resilient sleeve connecting to inner radially extending webs that in turn communicate with a smaller diameter inner sleeve that fits about the stem of the brush the cooperation of the sleeves with the webs forms a plurality of chambers which receive and contain a flowable viscous substance such as a silicone based lubricant or sealant the webs contain vents that permit movement between chambers so that when pressure is applied the shape of the grip alters by movement of the viscous material but when pressure is relieved the viscous material gradually returns to its original location and the original shape of the grip eventually returns as a third alternative the deformable substance may be a room temperature curable substance that after an initial period of adaptation to the user 39 s custom grip retains that custom conformation examples of useful materials for that purpose include room temperature curable silicone based substances or the like that are initially activated by exposure to heat air or other appropriate stimuli in addition the grip may be a sleeve forming a bladder within which is contained the viscous material of choice an exemplary brush of the invention is shown in fig1 as shown therein the brush 10 generally comprises a head region 12 and a handle region 14 the head region 12 further contains a plurality of bristles 16 the handle region comprises an inner stem 18 which is then surrounded generally by the outer deformable grip 20 the head region 12 and the inner stem 18 can be a unitary body formed of a single continuous material such.