Here is another creative and inexpensive wedding centerpiece idea: buy cheap beer mugs, fill them with water or water pearls as use them as a vase for floral arrangements. These beer mug centerpieces would be great for sports themed weddings or a beer themed wedding (you can incorporate these centerpieces with table names of different types of beer).
Beer mugs can also be utilized as containers for potted plants. These potted plants in beer mugs could be used as centerpieces or table name holders. Or both!