Martha appears to love her some turkey effigies, (check out her hilariously brilliant turkey baby costume). These elegant little fowl would make an inexpensive, effective centerpiece.
Made from 3 linen napkins and some tinfoil, the instructions are really clear and easy to follow. Though I'm thinking that an iron and some spray starch would be needed to get the edges super crisp like that and to keep your fabric turkey from wilting in the heat when you brought out your real turkey. A definate plus is that when your turkey is done being a turkey he can go back to being napkins and you don't have to find someplace to store even more decortions.