This would be so simple and elegant for a winter wedding tablescape / centerpieces.Create a simple centerpiece with holly in little vases. Fill with water and then add a tealight. (One of 8 diy candle projects)
But if the rustic box isn't your style? A wicker basket. A silver tray with lower sides. A glass bowl with moss up the sides to obscure the "mechanics" of the arrangement. A decorative ceramic serving dish. I love the subdued green and white look.