Kink Spike Solid Metal Pinwheel 3 Wheels. The Spike 3 Wheel Pinwheel from Doc Johnsons Kink collaboration ideal for teasing and tormenting a submissive with unique sensory delights, or as the prologue to a medical fetish play scene. Spike produces a variety of tantalizing sensations and effects depending on the pressure applied; lightly roll the wheel across the skin for a light tickling touch, or press harder to mark or pierce the skin with its sharp prickly points. Kink by Doc Johnson is an exciting collaboration with Kink