My extended family used to do a unique secret santa. You picked the name out of the hat and bought them a present. When it was your turn to reveal who you have, each person had to do a skit or something to imitate the person they have. It started simply just by making good-hearted fun of everyone's idiosyncrasies, but got more elaborate over the years. People started making props, writing songs, etc. The presets really were of very little importance, but we still talk about many of the funny skits people have done over the years.