Well, the scourge of donuts are a pretty regular feature, though I don't eat them. Sometimes people bring fruit or crackers or whatnot.
I recently took some classes on ikebana--Japanese flower arranging, and I've been doing an arrangement of that every week lately, which certainly helps the place since it tends to be a bit dingy. I'm a little bit disreputable, because I supplement the few flowers I get by culling a few clippings from the neighborhood, though not much from people's yards and nothing noticable. Helps me feel more like I belong there.