While it's of no or little consequence out in the real world, we here at FT spend inordinate amounts of time discussing tags -- like brag tags and medallion tags and million miler tags. And we talk endlessly about whether or not we get them or deserve them or use them or poo poo them.
So, I have not seen mention here of the Lyft | Delta Skymiles metal luggage tag, which I saw for the first time at LAS last week at the Sky Priority desk whilst checking in my bag (I was three hours early). It's shiny, it's real metal (feels like aluminum), it has a place to put your business card or other paper, and it's a little bit cool. The attachment is a vinyl strap made to look like leather, if I were to use it, I would just use a braided metal wire loop.