LOL, well talk about seizing the opportunity....
I sell specialty advertising/promotional products. So I give what I sell. I have 4 color pens etched with my contact info, and I have a "roomarang" ... a specially designed, indoor boomerang, for desk pilots, again etched with my info. A third item I have is a coffee mug, made out of plastic from corn. Corn plastic! It's great for the patriot, who hates that we rely on foreign petroleum, it's good for the environmentalist, because it will eventually biodegrade, it's good for the agriculturalist, the gardener, and so on. I sell products like this, and my customers that it will help YOUR customers to remember you.
Some sales people I know bake cakes and cookies, or bring them breakfast. Once that's eaten, they remember you for until dinner. Give them something that they'll actually use day in, day out, and they'll hook you up with ANOTHER referral eventually ... imo.
Sorry for sounding like a commercial, but I believe strongly in what I sell.