Abstract: A method and block for constructing a block wall providing the appearance of a brick facade. Each block includes a front wall, rear wall, left sidewall, and a right side wall. The method includes forming at least one groove on a front face of the front wall of each block or providing blocks with at least one groove on the front face. The method further includes attaching the blocks to each other thereby forming a block structure. The grooves on the front faces of the blocks form a facade and provide an impression that the facade is made of a plurality of bricks.

Abstract: The present invention includes a device for covering a plurality of first containers. The device preferably includes a plurality of similarly shaped cover materials configured to cover the plurality of first containers and substantially prevent dust from settling on top surfaces and rims of the first containers. Each of the plurality of similarly shaped cover materials preferably comprises a projecting edge that is connected to the cover material in a manner wherein when the cover material covers the top surface of the first container, the cover material is positioned lower than a horizontal rim axis defined by the edges of the rim of the first container. The low position of the cover material and the size of the projecting edge are preferably configured to allow a bottom portion of a second container similar to the first container to be laid on top of the cover material and to abut the projecting edge so that the second container is substantially prevented from moving laterally.