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.
I did this with red and white candles. It turned out super cute for the first stretch of the candles being lit, but once they started melting down and getting shorter, it wasn't as cute and now I just have a little metal bucket full of wax.