Abstract: A device and assembly for holding emergency flares stationary under adverse conditions. The instant flare base comprises a planar cleated base member having apertures disposed therein, said apertures being capable of receiving tubular flare supporting members. The apertures of one flare base may be aligned sequentially with tubular members on other of said flare bases to comprise a compact stackable assembly.

Abstract: A method and means for projecting a secondary rainbow of natural configuration comprising an arcuate prism of greater than about 180.degree. of arc and optionally an arcuate prism orienting means. The primary and secondary refractive surfaces of arcuate prism are oriented such that they meet along the edge of said arcuate prism closest to that point at the center of said arc. The angle formed by the primary and secondary refractive surfaces of said arcuate prism are from about 25.degree. to about 75.degree., the "active range". When the prism is of polymethyl methacrylate (such as lucite) the refractive surfaces subtend an angle of greater than about 35.degree. and less than about 65.degree., the "particular active range". Prisms within the active range provide for the projection of a secondary rainbow of natural configuration when a light course of generally parallel rays of light is oriented at a position from less than about 30.degree.