Share '2-Piece Rabbit Molds'

Does anyone know the proper way to use these two-piece molds? This style has two buttons that let the two pieces "snap" together. Should I deposit some chocolate in, snap them together, and shake? Or, make two separate pieces and then stick them together later with melted chocolate? I tried the snap-and-shake method, and a small amount of chocolate oozed out of the cavity, making for an ugly loo…