Copic markers, India inks, Faber Castell PITT pens, white paint on Illustration board, 13x19. This is how the cover looks without the logos (showing three disco dancing pegasi hiding under that giant logo). For the observant, you'll find the pony equivalents to The Monkees, The Rolling Stones, and The Beach Boys.
This is the cover for an exclusive variation of issue 9 of the MLP comic series. The cover is limited to 1000 copies for sale at the 2013 San Diego Comic Con. This exclusive variant also has another show only goody- an 8 page backup story of the origin's of Sunset Shimmer and her time as Celestia's student!