Smaller vase inside larger to decorate vase. Floating candle in the middle. Could do it with lots of other things besides lemon slices such as beads, pearls, flower petals, fabric, ribbon. Possibilities are endless!
Here's an easy decorating idea to use as your centerpiece or to give as a hostess gift this Thanksgiving! Place a Pillar candle inside a glass container. Surround the candle with such as acorns, chestnuts or pine cones.