Conceal Pin: Singing Bust with Hat. One of the singing busts wearing a derby with the bottom half of the broken bust beside him. Part of a limited release mystery set of 14 die cast silver / pewter sculpted pins featuring different characters and icons from the Haunted Mansion. There are 7 revealed pins and seven concealed pins in the set. Each box contains two pins, one revealed pin and one randomly concealed pin. The set is designed to be a puzzle. When the pins are placed together they form the outline of a bat.