SlugBot: Enemy of Slugs
According to this story at wired, a prototype robot capable of hunting down over 100 slugs an hour and using their rotting bodies to generate electricity is being developed by engineers at the University of West England's Intelligent Autonomous Systems Laboratory.
This thing is a lot like the Klingon Engineered Tribble predator in he old Star Trek animated series. Soon to come a competeing French design "Escargot Bot!" ;)