The lid and tissue paper need to be made ahead to dry.
Lid: gumpaste and fondant (I usually mix 50/50) cut square, shape it on the bottom of the
cake pan that will be used for the box. Spray the bottom pan with cooking spray before placing the gumpaste/fondant. Let it dry overnight.
Tissue paper: roll thinly the gumpaste, cut into squares, similar sizes. Arrange to dry on the top of crumple saran wrap in different shape, i.e. folded, frilled, etc.