FirstSing FS19239 Infrared (IR) pen for Wiimote Whiteboard
The  Infrared Pen shown has a rubberized grip and triangular design. It also has a built in magnet that will attract to magnetic whiteboards. This pen has a Vishay TSAL6400 IR LED, momentary push-button switch, and (1) 1.5 volt AAA battery. The Magnetic Infrared Pen is fully tested with interactive whiteboard software such as Smoothboard and Wiimote Whiteboard. Packaged as (1) random colored infrared pen
* Bluetooth Connection: Most recent computers have internal bluetooth capability. If you do not, there are many feasible options.
* Working Wii Remote
* Connect and Orienting Software: There are two main options which will be listed below.

Wiimote Whiteboard
This program allows you to use the Wii Remote (Wiimote) to turn any surface into a Low-Cost Interactive Whiteboard. It is based on Johnny Lee's original WiimoteWhiteboard program that is written in C# and available for Windows only. The program uses Java to allow for (some) platform-independence. There is also a Mac-only version and this is, up to my knowledge, currently the only such program for the Mac.
Features in a nutshell
* Open source
* Runs on Mac OS X, Windows, and Linux
* Simple User Interface available in English, French, German, Portuguese, and Spanish
* Auto-connects up to 2 Wiimotes
* Camera Monitor and Calibration Details for better Wiimote placement
* Right-click support, double-click assistance
* Mouse cursor smoothing
* Screen selection
* Touchpad Mode