Dug North writes:
I got one of these little beauties for Christmas and it is now the single coolest thing I own.
The knife is cleverly held in a custom belt buckle chassis with a magnet. The knife can be your hand and open in moments -- even without practice. There is video on the site of the creator using the knife. He HAS practiced and it is unbelievable. Butterfly knives, switchblades, and all other knives can't even compete.
They even do custom engraving. I went for nice scroll engraved pattern and the belt buckle looks great with a pair of jeans.
"Looks great" is subjective, I know, but even the knives that aren't engraved with eagles and flames and Abraham Lincoln sodomizing Khrushchev with Paul Revere's horse are pretty ugly. But on the upside, the belt buckle knives are not on the FBI's list of dangerous concealed weapons and are "accessible even when wearing chaps."
The knives start around $70 unadorned and go up to around $110 with extra fanciness. Even if you don't want one, seeing the repeating animated GIF of a man whipping a lens-flared knife out of his crotch is worth one captivating visit to their site.
Product Page [Belt-Buckle-Knife.com]