body{
  background: #444;
}
.rap{
  position: absolute;
  top: 30%;
  left: 45%;
  transform-origin: 25px 70px;
  animation: spin 15s linear infinite;
}
@keyframes spin{
  100%{transform: rotate(1turn);
  }
}
@for $i from 0 through 50{ 
  .wip:nth-child(#{$i}){
    position: absolute;
    transform-origin: 25px 70px;
    transform: rotate($i*7.2deg);
    
  &:nth-child(#{$i}):after{
    content:'';
    width: 75px;
    height: 20px;
    background: adjust-hue(rgba(0,255,0,.2), $i*50%);
    border-radius: 7px;
    box-shadow: 0 0 5px #000 inset;
    display: block;
    animation: wip 5s linear infinite;
    animation-delay: $i*-.05s;
  }
}
@keyframes wip{
    0%{transform: rotate(1turn);
    }
  }
}