This could be cheap without candles and a day trip to CA to cut our own evergreens. Another idea-a bowl of salt covered pine cones Another idea-a bowl if bendable twigs with wax dripped on them to look like ice
See the "Rhubarb Upside-Down Cake " in our Martha Stewart's Favorite Dessert Recipes gallery. This beautiful cake has a crumb "topping" that actually ends up on the bottom. Each bite has a surprisingly crunchy texture.