Curvy

What is it about curves that people are attracted to, so much more than straight lines. We live in a world of blocky buildings and flat surfaces. And yet we seem to be instinctively drawn to the exact opposite. The fluidity of long wavy hair, the curvaceousness of a SHB, the smooth streamlined flow on a Porsche Carrera.

Some things in Blender are surprisingly easy. You can make quite complex looking shapes sometimes very simply. Make a simple wavy curve, like a triangle but wobbly. Then make another simple closed curve, again a bit wobbly. Then apply the 2nd curve to the 1st curve as a Bevel Object, and you end up with the shape below. Even after applying it, you can continue to modify one or both curves to get just the shape you want.

You could use this for practical things like crown molding (the bits of wood between walls and ceilings), gutters, doorways, anywhere where the same cross-section applies along the whole length of the shape. Or just for strange looking shapes like this one.