The Disintegrator is a motorized cordless twin rubber band minigun, capable of firing 40 bands per second.
It’s billed as:
The most devastating rubber band gun ever built
And I’m going to have to go ahead and agree with that claim! And now for a couple of videos of the Disentigrator in action!
This one is funny at the end when the host of The Gadget Show stands in front and take the brunt of the rubbery barrage.
By the way, here is how it was built.