Nothing beats potatoes roasted in duck fat IMHO, but it looks as though you are looking for a little variety.
Ive been going off the beaten path a little when @ home and have been making pasta dough with duck eggs, then using it to make ravioli of duck confit and porcinis. Then I add a duck egg yolk to the center of the ravioli before sealing it up. Make a port reduction to drizzle beneath the ravioli, and you are in for a good time!