These are characters dressed as various MGM characters.
Disney
Mascots
Films
TV Shows
Pixar
20th Century Fox/Studios
The Jim Henson Company
Paramount/Viacom International
Nickelodeon
CBS
DIC International/Cookie Jar
Comedy Central
Warner Bros
Films
TV Shows
Cartoon Network
Universal
Films
TV Shows
Illumination
DreamWorks
Columbia Pictures
Films/TV Shows
Tri-Star
Sony Pictures Animation
MGM
Films
TV Shows
PBS Kids
HiT Entertainment
Hasbro
Pinkie Pie- Scarecrow
Rarity- Tin Man
Fluttershy- Cowardly Lion
Apple Bloom- Scarecrow, Sweetie Belle- Tin Man, and Scootaloo- Cowardly Lion
Anime
Other
Crossover