A lot of you readers will have probably got hold of a plastic sword and made funny shooshing noises like a light saber from StarWars. Well, for those of you with a Mac and a Wiimote you are now in luck. Put those motion sensors to work and pretend you now have a wiisaber 
To get this to work, get your Wiimote and your mac and install the software at the bottom of this post. Happy swooshing!
You can get the software from here.