The best examples of this are carnations and gypsophilia, or baby's breath. The problem with the usual application of baby's breath is that it plays to its weaknesses rather than its strengths. People often attempt to "artfully scatter" baby's breath amongst things, and a single stem of gypsophilia will always look rather naked. The true beauty of this flower is best showcased en mass.
FYI, the most common varieties of gypsophilia are bambino, cassiopeia, million stars, new love, mirabella, orion, and perfecta.
No other flower can quite create the delicate, full silhouette that gypsophilia can. In large bunches it is the perfect balance of flower to green plant matter to create something reminiscent of froth and lace. I'm particularly fond of these applications: