To quote Sheldon Plankton: I WOULD!!!

And in case you didn't know, Seth Green himself is a brony! Just look at this pic:

Seth green with Pinkie Pie by reddragon5

Proof that Seth Green, star of Family Guy and creator of Robot Chicken, is a Brony!

I'm sure they could find some action figures /dolls somewhere of the characters that they can use. It would be so awesome! Just think of what they could do!

I'm thinking about maybe starting a petition for people who want to see such a sketch (or hopefully series of sketches, as I can't imagine they would get those figures for a single sketch).