How about some nice but tasteful costume jewellry for the females, and Christmas socks for the guys? Also, most people like chocolate, so that's a pretty safe bet. For the younger kids, they might enjoy small colouring/activity books and packs of crayons, or travel-sized versions of board games like Crocodile Dentist or Connect Four or Hungry Hungry Hippos. Actually, I recommend Crocodile Dentist and Hungry Hungry Hippos especially, because their travel versions don't have any loose parts that can go missing. The travel-sized HHH has a dome that prevents the balls from escaping (I think), and travel Crocodile Dentist is played by pushing the crocodile's teeth down with your fingers rather than pulling them out with plastic pliers, so you're set. Small Etch-a-Sketches might be good too, except most little kids aren't co-ordinated enough to draw actual pictures on them, so they might get bored with just doing straight lines and "stairs." Oh, and do kids still play with Beanie Babies? If so, that's another possibility.