Perhaps they would be better suited in a vase on the tabletop, so they're not actually touching napkins and plates. I've always loved this example from Domino magazine:
Squirmish still? Try taking an oversized cylindrical vase or lidded apothecary jar and dropping feathers down inside. They'll be fully contained yet on display within glass vessels.
Related: Top 10 Holiday Uses for Wine Corks
(Images: Marcus Nilsson/Country Living, Domino Magazine)