Released in 2011 as an open edition, this pin features a sky blue glitter background shaped somewhat like a cloud with jagged edges rather than straight lines. The front design showcases a castle in shades of blue, silver, and gold under the word "Celebrating" in undelined gold script, accompanied by an old skeleton key adorned with a shiny gold thread dangle to the left and topped with a star on its right side. A white plaque displaying the number stands beside the key, while additional gold stars embellish the surface; underneath the mechanism, "MAGIC KINGDOM" is inscribed in dark brown or black lettering that contrasts with the underlying enamel. While the writing on the pin itself appears to be done in dark brown or black, the reverse side displays a detailed image of all of Mickey Mouse's heads except for the portion hidden beneath the key, alongside the Odpt logo, Disney China mark, and the Cast Member Exclusive branding. As an open edition item permitted through the cast discount at Company D locations, this piece represents one of four original designs available to staff members.