I had two Derp Ends in mind, and settled on the Princess Fionna one. However, I liked the other one too much to discard, so I made it into another ending: the Epic End. (in all honesty, I hate that word for the most part, but it fit too well here)
This wasn't planned, but in a way, since the original "Good Realistic" idea was ditched, the Good End could take that role and this could take the "Good Unrealistic" title.
And if you don't get who Finn is, you haven't heard of Beard Finn.
And here's an animated gif: [link]