A stencil device for forming configurations in deformable material includes a first member having ridge portions integrally joined to channel portions that promote the insertion of the ridge portions of the first member into deformable material; and a second member having ridge portions integrally joined to protrusion portions that promote the insertion of the ridge portions of the second member into deformable material; whereby, the first and second members ultimately form a design pattern across a preselected surface of deformable material by alternating the insertion and removal of said first and second members across the preselected surface of the deformable material.