Descriptions by Simon Fraser Editorial comments by Roger's Connection are in italics.
Another variant of the 'bowl' type construction. This time, the pentagonal base makes the sides of the bowl less steep. I don't have enough parts to round off the sides of the bowl any more than this, so settle with a bilaterally symmetrical triangular shape.
Simon Fraser also maintains his own Roger's Connection web page featuring his designs. You can also follow his link there back to his home page.