Have you ever tried them? They are expensive but nice! I bought myself three for my one year anniversary of quitting smoking. They feel good in the hand. They trim beautifully, especially with porcelain. The only drawback is that they are fragile, you sure don't want to drop them! But if you do you can send them back and Phil Poburka of Bison Studios will fix them for you, for a nominal fee. The trimming part of the tool is made of Tungsten Carbide, the handles are turned from exotic woods that adds to the feel.
I just found out that Bison Tools are now available on Etsy so it is now easier than ever to own your very own! Check it out here, Bison Studio's on Etsy.
And yes, it has now been over two years since I quit smoking. Though it has been difficult lately to remain a non-smoker, I STILL AM!!!