This page describes one way of turning the standard sage directory into a clickable Mac Application.
The [http://www.sveinbjorn.org/platypus Platypus] program is used to make things easier. Download Platypus, and install it along with its command line tools. Using the command line Platypus program makes this process scriptable.
A Mac application needs an Icon. I made one from the Sage web site logo using the Icon Composer program that is installed with Apple's Xcode tools. Name the icon sage.icns