Wiki "An impossible bottle is a type of mechanical puzzle. It is a bottle that has an object inside it that does not appear to fit through the mouth of the bottle. The ship in a bottle is a traditional type of impossible bottle." Your challenge in this contest is to make such an impossible bottle. What is in the bottle is up to you (exception: no fluids) but your entry must contain a full bottle which is closed.
Don't forget the minimal 2 step SBS with intermediate steps and to mention your sources!