How to make a larpsafe thrusting rapier

Derek posted this guide to Larp Haven; it might be useful here as well:

https://drive.google.com/file/d/0B8h-sD248qhjN1YwaWVNcm1FNUk/view

Comments from larp haven include the possibility of using flat kitespar rather than sanding down a round fibreglass rod (with all the health & safety horror that implies), and using plastic or rubber bowls rather than steel for the cup hilts.