Abstract: The invention provides a device for advertising (10), which device includes a post (12), which post (12) is configured to have attached thereto a plurality of slats (18) extending horizontally away from the post (12) and in a vertical plane along the post (12) with each slat (18) being pivotably dependable from a horizontal axis (20) to depend in the vertical plane when no wind is present and to be pivoted out of the plane by wind. One embodiment shows a support structure for slats (18) in the form of a frame (30). The device (10) further includes LED lighting strips (32) to illuminate the slats (18), in use, during the night. The device (10) further includes a platform (34) provided with solar panels (36) and chargeable electrical power storage means within the post (12).