If you have only normal white tablecloths to choose from, you can decorate the tables wonderfully with wooden boards and hang them up like a table runner.
Tree trunks as decorative bowls are the classic and at round tables great “Centerpieces”.
Especially stylish are large bark pieces as table decoration, which are not so easy to find.
Deco winter wedding rustic style in original ideas
Rustic centerpiece with pine cones and candles