Probably not exactly what you are going for, but DH decided that we would bring the desserts. (I am sure someone else will bring something as well.)
We have a pumpkin pie (will be picking up the Cool Whip this weekend) and he HAD to get the Trader Joe's pumpkin cheesecake. Fine.
Last year my mother did a Thanksgiving meal of all tapas (small plate sized) dishes. She had some crazy things going on. She ended with pumpkin tarts, gingerbread, brownies, & Orange Tiramisu. But she also had 3 different Granitas in between course.
Of course, last year was the year that we weren't able to make it down.