Pretty sure everyone could find something to suit their needs from the following list of items...
http://zombietools.net/tools/
I have a couple favorites, but just in case you don't make it to the bottom of the page to see the link, check out "The Deuce" ... roughly 4th knife from the bottom... check it out, and check the video of the guys at Zombie Tools in a torture test... http://www.youtube.com/watch?v=itE3_p7Fxwg
http://zombietools.net/tools/
I have a couple favorites, but just in case you don't make it to the bottom of the page to see the link, check out "The Deuce" ... roughly 4th knife from the bottom... check it out, and check the video of the guys at Zombie Tools in a torture test... http://www.youtube.com/watch?v=itE3_p7Fxwg