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.
Place cards and favors in mini pots of moss. Covered with a glass, each looks like a mini terrarium. Fill a 1 terra-cotta pot with moss, insert twig in center, and glue a name tag to twig. Cover with a glass, which can be used for drinks.