My son gave me a challenge of making a General Grievous cosplay for him. I try to keep true to craftmanship and maintain at least a 75% fabrication so I decided to construct the lightsabers. So after multiple visits to the dollar stores and hardware stores I came up with the following instructible. I attached a PDF file with basic instructions, if anyone is interested in specific details to one of the designs pictured let me know and I can edit the instructible. Enjoy.