I am in favor of FUNCTIONAL parts to kilts accessories. If someone is anti-knife (as some her are) or one does not use a knife except when eating or cooking, then an alternative is ideal!
I HATE "fake" knives-> plastic ones, clubs that look like knives, or unsharpenable (is that a word?) stainless steel.

A bottle opener is an alternative I would DEFINATELY have (especially if I drank a lot of beer or bottled drinks). The ones on that site look beautiful and made by someone who CARES about their handiwork (I can NOT emphasize how important that is!!!).

I am soon going to either buy or make a bottle opener kilt pin (much more practical than most alternatives).