- Every Wednesday for the last 14 years a group of people who have come to be known as those shinai people have been getting together to practice sword fighting with Shinai . On any given week the number of shinai fighters can range from 2 to 60. An equal number form to watch and have fun on the sidelines. It can't hurt to come and see what it is like. Because we are a non-official group, we ...www.shinai.org