Viscosity is an abstract art creator by Jeff Weir that won the Best Art award at SXSW. "It allows anyone to create beautiful pieces of abstract art in a matter of minutes or hours, depending on how much time you spend on the details. You can choose from a preset block of colors, which can be completely customized, and then you simply drag various brushes through the lines to create your art. If you’re into detail, you can also drag each point of color into a specific location on your virtual canvas.