The activities balanced in the discipline of logistics are planning and execution. You can represent the planning side of logistics with simple cutouts of calendars, clocks and schedule books. For a more detailed bulletin board meant to help more advanced students understand logistics, you could give examples of real planning from various contexts. These could include an inventory sheet from a warehouse, a project timeline from a corporate office or a printout of a personnel file. If you use materials from a real company, be sure to obscure or alter any confidential information before displaying it.
The other side of logistics is execution of the plan. This includes hiring and managing personnel, transporting goods, allocating time and other resources and arranging for the storage of reserve resources. For a simpler board, you can pin up images of delivery trucks, people working at desks or clipboards with a checked-off "To do" list. A more detailed bulletin board could display cargo manifests, work schedules from a factory or project progress reports from a corporate office.
The main objects of logistical operations, broadly speaking, are people and resources. To represent how to manage the flow of personnel in an organization, you can use simple images of people being hired or working at various positions, such as at a desk, on a construction site or driving a truck. A more detailed bulletin board could show the organizational chart from a fictitious company or a display of students in the class grouped by the projects to which they are assigned.
Logistics manages the efficient flow of resources, including goods, time, money, vehicles and facilities. A simple representation of this aspect of logistics could be made from cutouts of a factory, warehouse, truck, office building and home, with arrows between them representing the cycle of production, wholesale, retail and consumption. To provide a more detailed view, you can put up real or fictitious records of the flow of goods in a company, or even the way it internally manages office supplies, room assignments or meeting times.