What is lurking inside this musical tin box? Crank the retro-styled Jack-in-the-Box handle to play "Pop Goes the Weasel" as you anticipate that spine-tingling moment where… POP! Out comes The Dark Knight The Joker Jack in the Box - Convention Exclusive from Bif Bang Pow!. Limited to 3,000 pieces, this Entertainment Earth Convention Exclusive can be pre-ordered now for $49.99. The figure will first be sold during San Diego Comic Con 2016 at Entertainment Earth Booth #2343. If supplies remain after the show, pre-orders will be filled and shipped in August 2016.