Enjoy the Greenery
Source: Martha Stewart Weddings
Store-bought accents are an easy, inexpensive way to dress up a plain wedding cake. This wired faux boxwood garland from Bell'occhio, for example, is easily bent into swags and a wreath topper.
Plain wedding cake
Wired faux boxwood garland
Have your caterer create a basic cake (ours is covered with textured fondant icing and piped royal-icing details), and affix the garland with dabs of royal icing.
Form a wreath with more of the trim, keeping extra on the end to wrap around a wooden skewer; insert the skewer in the cake's top tier. Add a dainty ribbon bow -- and leave it at that.