In a double boiler over medium low heat, melt 1⁄2 Cup of the white chocolate chips, stirring frequently to avoid burning. Transfer to mixing bowl and add the cookie crumbs, pumpkin, sugar, salt and cream cheese and beat with electric mixer until smooth. Chill for about 2 hours or until solid enough to roll into balls.
Heat the broken almond bark according to package instructions. In a large bowl or a 2 gallon zippered bag, add the popcorn, pretzels, cookies, M&M and Mike & Ike candies. Pour half of the melted chocolate over the snack mix. Line a baking sheet with wax paper and pack the snack mix into the pan. Drizzle with the remaining almond bark and top with sprinkles.