Tankendo: When Shinai aren't properly dry cleaned.
Meik Skoss, a Koryu exponent for those unfamiliar, provides a brief explanation: http://www.koryu.com/library/mskoss12.html
Kendo can be a highly skilled exercise in combat sports, but it's not quite directly related to modern conflict (or even ancient conflict? I digress...). Yet here we have Kendo made relevant...maybe? I wonder if this isn't the "boxing" of knife-related MA.
What do you make of it?