I've never heard of anyone doing it in Europe. I was surprized it was supposedly so common in the US, but then people here kept reporting they'd encountered twins named Anna and Hannah or Peyton and Payton, so I thought these kind of twinsets were the norm.
Yeah, the only ones I know are Chris and Kristi. There are matchy twin and triplet nephews and neices for them, but I don't remember the names. (One set of triplets included Braelyn, though.)