A method of forming solid beads, the method comprising:Providing a first liquid comprising a solute and a solventForming liquid droplets of the first liquidContacting the liquid droplets with a second liquid so as to cause the solvent to exit the droplets, thus forming solid beads,the solute comprising a polymer, the concentration of polymer in the first liquid being at least 7% wv. The apparatus includes a housing held in contact with the skin and a moving mechanical contactor protruding through in an opening in said housing and preloaded into skin. A pair of rear view cameras also preferably integrated into the headlight assembly of the vehicle allows rearward vision to be displayed where a rear view mirror is typically positioned.