These hairstyles spread like wildfire on steroids among the students at my high school. You couldn't turn your head without seeing a multitude of shaving patterns. Tennis rackets, tyre treads, knife blades... This fad mostly died out in the mid 00s when everybody started copying each other and then all decided to just kick it altogether rather than make up new designs. But you can still occasionally see them among the VERY numerous street gangs of Western-Central Scotland. The pattern here is from a Avon Sport Coupe tyre with small sections dyed red. The ends of the spiked at the top of the head are bleached blond at the tips in typical Glaswegian style!