Floating Candles in a Rose Petal Filled Display Dish :: Candles shaped like flowers give the best results. You'll need: A clear glass bowl, Flower floating candles, Rose petals & leaves, Red food coloring. Fill the glass bowl with water. Add a few drops of red food colouring, giving the water a pale pink tint. Float the candles. Scatter rose petals around the candles, with a few rose leaves in between.