Abstract: A blank of foldable sheet material for assembling a hollow figure having inwardly directed conical depressions comprises a sheet of foldable material having the shape of a square or rectangle, without interior cuts or exterior tabs scored or marked for scoring in four areas along circular lines tangential to each other and having a radius of one fourth the diagonal of the sheet if a square and one half the narrower side if a rectangle. The blanks have each of the circularly scored areas formed by rolling into a conical shape comprising from about four-ninths to two-thirds of a cone. Six of the blanks assemble into a self-supporting interlocking hollow figure having eight inward-facing cones. If desired, the visible surfaces of the hollow object may have a decorative or informative imprint or coating thereon.

Abstract: A blank of foldable sheet material for folding a regular octahedron comprises a sheet of foldable material, such as paper, plastic sheet or metal foil, having the shape of a regular hexagon, without interior cuts or exterior tabs. The blank is scored or marked for scoring along lines subdividing said hexagon into 24 equilateral triangles of equal size, each having sides one half the length of a side of said hexagon. The triangles are formed by first marking or scoring along lines extending from opposite apexes of the hexagon to produce six equilateral triangles having sides of the same length as the sides of the hexagon and then marking or scoring along lines connecting the midpoints of adjacent ones of the first produced triangles. Successive folding of apexes of the blank along score lines ending with the tucking of one final flap into another produces an octahedron held together by the folds and final tuck without need for adhesives or other securing means.

Abstract: A new vegetable drying apparatus consists of a net bag or perforated plastic bag placed inside an outer imperforate plastic film bag, both bags being provided with handles or other means for holding the same for manual rotation at relatively high speed. The washed vegetables which are to be dried are placed in the net bag, which is, in turn, placed inside the outer imperforate bag. The two bags are held together as a sling and manually rotated at a sufficiently high speed to remove water from the vegetables by centrifugal force. The water removed from the vegetables is collected inside the imperforate bag instead of being thrown out into the area where the bags are rotated or slung around. After use, the inner bag is removed from the outer imperforate bag and the vegetables, free of surface water, are removed. The water collected in the outer bag is poured out and the bag turned inside out to dry, if desired. An alternate embodiment includes a water absorbent liner, e.g.