I have the good fortune to have a cousin and a second cousin who recently decided we needed to get together. All of us. So my Lanzillotto relatives will be having an impromptu family reunion in a couple of weeks. And I've offered to bring the genealogy! (plus a side dish and a case of beer) Here are a few of my ideas:
1) Make copies of particularly interesting family records for people to peruse.
2) Make copies of family photos to display.
3) Encourage others to bring photographs - and documents, if they have them. (I may keep my printer in the car in case anything shows up that demands being copied and/or scanned.)
4) Put together a family tree to display, with advance help from relatives. I'm definitely going to include the generations from my grandparents to their grandparents, but I don't know whether or not the younger generations will be able to fit on something I make by hand. Off the top of my head, my mother's generation is at least 20-25 cousins; my generation is 42 that I can think of, but probably more; the generation after mine is 8 that I know of, but that's because we're only just getting started!
What other ideas are there for involving genealogy in family reunion?