Personalized Engraved Cufflinks

I am thinking of a good way to give a unique gift that is functional and at the same time classy. I am buying this for two of my friends that will soon become part of the workforce. They got hired for white-collared jobs that would require them to wear business attire. Now, I am fascinated by cufflinks that they can use on a daily basis. I checked online and saw engraved cufflinks. They come in different shapes and sizes. I always believe that a personalized gift will always be special to its receiver. I can have their initials or nicknames engraved on those cufflinks that will make it more unique and special.