Most of my brewing these days is targeted towards eventual blending, whether they are sour or clean, but that is blending going into the bottle, not coming out.
I also like to play with blending in the glass though. I have done some pretty simple black and tan style blends that turn out really nice. Left Hand Milk Stout with Deschutes Mirror Pond is a good one. My wife and I play a game at bars where we try to pick out the two beers on tap that would the worst. More often than not the worst tends to be Dos Equis and some imperial stout. Skunk plus roast is pretty bad.