The past few years, companies marketing strategies integrated the use of the new technologies as a marketing tool to enhance the sales. The advance in novel innovative user interfaces would now allow to expand the use of 3D simulation. Such innovative marketing tool in a store helps the customer to imagine quite realistically herself with the product in the future. In this paper, we present the hardware design of a new marketing tool based on tabletop in a sales situation. We take into account the situation, geometry and space arrangement of the store. We place the users, salesman/woman and customers, in the centre of our design to propose a tabletop that promotes users collaboration in this professional context.