This MLP papercraft is Vinyl Scratch (aka DJ Pon3 in slight variations), a fan-named background pony who has acquired an outsized presence in the fandom relative to her importance in the My Little Pony show, the papercraft is created by Kna.
Vinyl is often depicted as a hip-hop DJ to the core and, just as often, is the go-to mare if you want to take part in Ponyville or Canterlot's night scene. She's known to be wild, unpredictable, and sometimes borderline insane, not giving a hoot what anypony else thinks of her words and actions. She's often paired, whether romantically or simply as an Odd Couple friendship, with the more cultured and sensible Octavia.
While Vinyl generally finds Octavia's choice of music boring and can be a horrible tease, she does respect the earth pony and is usually the one to initiate the friendship/relationship if the two don't know each other from the get-go of a fic or comic. She has also been depicted as having a relationship with Neon Lights, a background unicorn pony, usually shown to be a lighting show designer. They often share the same personality in fan labor. For more information please click here.
You can download this papercraft toy here: My Little Pony - Vinyl Scratch (DJ Pon3) Free Papercraft Download