This is a box I made for holding Tippi Tree pieces.  The base is about 3mm thick abd has been embossed with the Tippi Tree trunk and roots on two sides.  The lid fits over the inset on the top so the sides are flush when it is closed.  The lid will need to be flipped before printing.  The Tippi Tree logo from the kit can be glued to the top of the lid.  

The box was designed parametrically in FreeCAD and I can upload the souce file if requested.