Pizza Party (2004) - Cory Arcangel with Michael Frumin
Can order pizza with only a few keystrokes.
Can save pizza preferences.
Can use batch files for ordering many pizzas.
Has easy to use flags for ordering different toppings.
Runs on most UNIX-like operating systems.
Supports most currently popular topings like "mushrooms", and "pepperoni"!
Unattended / background operation.
Pizza Party is distributed under the GNU General Public License.