The series needs a supervillain pony in a chicken costume.
 
“Ponies are a superstitious and cowardly lot. I shall become… a chicken.”

@Sonork  

And it’s going to be really, really weird when they both go the Batman route and dress like the things that scare them.
 
Celestia: “It’s time my enemies share my dread.”  
Luna: “… And that is why you purchased a chicken costume?”  
Celestia: “Yes. Now, let us take to the streets, and fight crime most fowl!”  
Luna: “Puns. Of course. You know, sister, I think I shall summon Twilight instead. Surely she can talk sense into you.”  
Twilight: “No need to bug this lady!”  
Luna: “Oh look, you both decided to do it. I’ll be right back. I am going to change into my costume, which I should warn you, makes me look a lot like a team of orderlies from the mental hospital holding sturdy nets.”

Twilight Sparkle: Dear princess Celestia, I’ve got a weird fear. A fear of ladybugs.  
Princess Celestia: My faithful student Twilight Sparkle, you’re not the only one with a weird fear. I have a fear of chickens.

Let´s not Forget that every morning the roosters start coo.
 
Celestia- Time to raise the Sun. The Voices…

@Goddess Erosia  
Indeed it is.
 

I feel like this is a farside joke