A blade configuration for efficiently moving a fluid using a waving action. The blade configuration uses a flexible panel. A pocket depression is formed in the flexible panel. The pocket depression is closer to a rear edge than to a front edge. Consequently, the flexible panel has a first average slope from its front edge to the pocket depression and a second average slope from its rear edge to the pocket depression. The second average slope is greater than the first average slope. Due to the shape of the pocket depression and attachment to the framework, waving movement of the blade through the fluid causes vortices to be generated and shed in a manner causing the fluid which interacts with the flexible panel to flow mostly in the direction of the front edge of the flexible panel. This directs much of the displaced fluid out the front edge.

An ornamental, celebratory hand fan that can be used to both cool a user and allow the user to support their favorite sports team, has a body, a plurality of lights, a power source, and a power control. The body depicts at least one sports item and is formed by a panel, a handle, and a base; the base and the panel being terminally connected to the handle opposite each other. The panel provides a large flat surface that is used to cool the user when manipulated by the handle. Meanwhile, the base prevents the users hand from slipping off of the handle. The plurality of lights are integrated into the body and enhance the visual appeal of the sports item depicted. The power source provides current to the plurality of lights, while the power control toggles the flow of current from the power source.

An umbrella comprises a cover and two rod hinges. A canopy is engaged with a rectangular frame for forming a rectangular cover. A left rainproof folding fan and a right rainproof folding fan, each has a pivot at a bottom linked with the bearings of the rectangular frame, respectively. Two sets of Velcro is linked with the rectangular cover, the left rainproof folding fan and the right rainproof folding fan for forming the cover. The two rod hinges is linked with the rectangular frame and attached onto two straps of a backpack through two fasteners, the each rod hinge having a bracket and a rod with a stopper and an outlet connected with the each pin respectively, wherein the cover and the two rod hinges form an umbrella with adjustable coverage which has the rectangular frame fixed with the stoppers when the cover is extended and the two rod hinges are extended and erected.