Iconify is a tool written in C which allow to run any command in a simple GTK interface that can be minimized to an icon in the notification bar.
Usage: iconify [-fs]
[-i <icon>] [-t <windowTitle>] [-o <tooltipText>]
[-w <width>] [-h <height>]
-- <program> [programOption]
Options:
-f Fork to background
-s Show the window when starting
-i Path to the notification icon to use
-t Title of the window
-o Tooltip text to show
-w Width of the window
-h Height of the window