Now we’re getting into the science experiments. Slugs love yeast. They’re like tiny alcoholics. Fill a shallow dish with beer (cheap stuff works fine) and sink it level with the floor. They’ll crawl in, get drunk, and drown.
It sounds morbid, but it’s also oddly fascinating. You’re basically setting up a slug pub with a tragic ending. Change the beer every couple of days. Note: This works best for slugs, not for fancy dinner parties.