Editing

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Clickyou'll see 3 options at the top left:theSelect face, then click the circle face of the meshat the left side select the move, to see these blue red and green arrows click and drag down the blue arrow to resize the height of the meshthenmove up a bit by dragging the blue arrowand make it smaller do extrude up and resize to small up to like thisextrude once again then this time resize it to big for the head of the.. mushroomand it should look like thisextrude up, extrude resize to small again and again up to the tip of the head, like thisnow tab again to go back to object mode, to remove the hard edgesand it will look like this ..now you have a strongmushroom