Derpy cheering for Ponyville.
Derpy looks at her dropped flag
Derpy shrugs knowing she gets that a lot
Pinkie and Derpy smiling.
Derpy, watching with the rest of the crowd.
Derpy is best photobomber!
Rainbow Dash, writing in her journal.
2012 Special Edition Pony toy
A front photo of the Derpy Hooves brushie pony from the 2013 TRU set.
Looks like Derpy's name is Muffin now...
A 2013 Comic-Con special edition Funko Derpy vinyl figure.
A limited edition We Love Fine vinyl figure, which can be purchased at the 2013 Comic Con with the purchase of 100 dollars in merchandise.
Derpy Hooves 10" Plush by Funrise
Have a Derpy day! WeLoveFine shirt
I love Derpy WeLoveFine shirt
A limited edition 2013 San Diego Comic-Con exclusive "Fan favorite pony" USB drive.
Funko's Cupcake Keepsakes: Derpy
The 2013 Derpy Hooves/Muffins cosplay set released for Halloween.
2013 Holiday Light Set featuring Derpy Hooves and the Doctor as her glowing companion
Lauren Faust discussing Derpy.
Derpy's expression almost remained unseen.
Faust attributing Derpy's appearance in episode 15.
Leaked storyboard sketch from Luna Eclipsed (later altered).
Derpy appears in the Nightmare Night patch for Gameloft's MLP iOS. When you click on the Apple Bobbing Pond, she pokes her head up out of the water for a few seconds.
You can slightly see Derpy in the lower right.