Blender is a free 3-D software that lets you create whatever model you want. Its difficulty is based on how well you know the hot keys. I like to use this program a lot with Garry's Mod to see how well I can make body armor or some kind of car part. I spend most of my time learning more about blender and what I can do with it.
Painting With Sound by German photographer Martin Klimas. - “Like a 3-D take on Jackson Pollock, the latest work by the artist Martin Klimas begins with splatters of paint in fuchsia, teal and lime green, positioned on a scrim over the diaphragm of a speaker. Then the volume is turned up..."