Along with wearing lace fingerless gloves, hair crimping was essential practise among teenage girls and even grown women (Madonna and Cyndi Lauper for example) in the 80s. Basically, using a pair of crimpers connected to the main, you clamped sections of hair in between two hot metal (nowadays ceramic) plates for a few seconds. After releasing the plates, this section of hair would be totally transformed in a zig-zag effect. No one knew back in the 80s just how much damage crimping did to your hair, though! These days, crimpers only come out for 80s fancy-dress nights out - most prefer to straighten their hair or curl it, both in much the same manner as crimping.