This was something I thought up a while ago and quickly typed before I could forget it (like all my other wonderful ideas. Curse you, short term memory!).
ONCE UPON A TIME
Rapunzel and Flynn Rider (darling Eugene Fitzherbert) are on their honeymoon...
...and they decide to go back to the tower for a reminder of how they met-- call them sentimental.
They are surprised when Mother Gothel turns out to be alive-- the small dust particles that blew apart at the end of the movie rejoined because of her ginormous evil powers.... That means even through cremation she will come back to life. Let that sink in for a moment. 
Awesome butt-kicking ensues and a strange turn of events as Mother Gothel joins forces with Maximums (she bribes him with apples).
Mother Gothel starts a face off...
literally...
Rapunzel obviously wins because she did her face IN COLOUR!
And she's got way more faces to show.
And although Mother Gothel can do a pretty good moue...
We all know what she REALLY looks like.
In the end, Maximus leaves the dark side to come back to his friends.
They frolic...
...and live happily ever after.
