The best swag I ever gave out was when I worked at a company called Magiq - the name and marketing was based on that "Any sufficiently advanced technology is indistinguishable from Magic" quote, and that it was "Powered by Gnomes" So, at a big event in Earls Court that year, we had a big stand, and gave away garden gnomes with our branding on them! They were surprisingly popular, and we got emails from all over Europe where people had taken them home and had interesting conversations with airport security on the way.