This comes early on in the review of the first book, and to be fair it's only a very minor spoiler. Our two protagonists have a romantic attachment (whether real or contrived is TBD as the books continue). The point is this: Katniss and Peeta, as a couple, have limited options as to their 'couple mashup name.' It comes down to Peenis or Katpee.
I am going to keep this in mind in all of my future stories; I need couplenames to rival - nay, BEST - that. The bar has been set, and it is hilarious.