Originally Posted By: Mogg
You could try these guys

http://www.ferrocerium.com/main.sc;jsessionid=1DBCB8AF0C16DD3C905213465EFE3D07.qscstrfrnt04

The animated GIF image on their website makes me want to run for the bandaids! I've always used the "put the knife to the rod, keep the knife in place, and pull back on the rod" method. Those wild strikes with the knife just make me say "ouch"!