Materials;Carton, Aluminium foil, Black tape, foam, Transparent nylon.
STEPS:
1. Cut a rectangular shape on the top of the carton but not completely.
2. Use the Aluminium foil to wrap the cut out.
3. Use the the black tape to wrap the inside of the carton.
4. Place the transparent nylon to cover the cut out space.
5. Make airtight by adding foam to fill the sides.
