Abstract: Devices and methods for rapidly and conveniently decorating generally cylindrical structures, such as the trunks of outdoor trees, poles and the like. A decorative lighting assembly includes a pair of substantially parallel and rigid hollow side members. A light string is disposed through both of the side members to provide a series of parallel light runs. The two tubular side members are reversably affixable to one another using one or more fasteners. Male and female plug connectors are provided for the light string so that like lighting assemblies may be reversably secured to one another. In operation, the lighting assembly is disposed along side a tree trunk, lighting pole or similar cylindrical structure in a substantially vertical orientation. The two side members are then translated about opposite sides of the cylindrical structure so that the light runs are cause to surround the cylindrical structure. The side members are reversably connected together.