In at least one embodiment, a panel comprises a body portion comprising a front side, a back side and a plurality of cavities. The front side comprises a plurality of face portions and cavity openings arranged on a first plane, and a plurality of guide members. Each guide member comprises a front edge arranged on a second plane, wherein the second plane is offset from the first plane. The guide members define a plurality of spaces of predetermined volume between said first plane and said second plane. A method comprises providing the panel, applying mortar to the panel in the predetermined volumes, skimming the mortar using the guide members to guide an edge to form metered mortar pans, and pressing objects into the mortar pans.