Each group needs:

• 6 sheets of thick A3 cardstock (have extra A3 cardstock on hand for mistakes and redesigns)
• masking tape
• 2 bone folders (dull-edged hand tools used to fold and crease materials, available online)
• 2 straight edges or rulers
• scissors
• pencils
• hole punch or penknife (for creating the elevator shaft)
• scratch paper for brainstorming