While stalking around on the internet, my boyfriend found this (what looked like) an awesome masturbation video of a woman using a dildo attached to a lightsaber.
Unfortunately, this video was full of nothing good and was a girl showing off how flexible she was with her dildo.
Found here at Rotteneggs, they include pictures AND instructions on how to make your own lightsaber dildo. (Picture also from rotteneggs, don't worry.)
All you need it is a lightsaber, brightly colored dildo, utility knife, and a mini LED flashlight.
That's right. Your own lightsaber dildo for around $20.