The Firebrand Forge has created an open source FX board (Kickstarter) for light sabers and other props.
UPDATE: This board appear to now be available on Tindie.
The ENCHANT board is a light and sound controller with an accelerometer and gyroscope. It’s compact size makes it ideal for props, like light sabers, and wearables.
This video shows the light saber in action.
The rewards in their Kickstarter campaign include levels from an ENCHANT board, an ENCHANT wearable skirt, and multiple light sabers.