Which of the following is a common mistake in corsage preparation?

Using too much floral tape in the arrangement is indeed a common mistake in corsage preparation. The main function of floral tape is to securely bind the stems and materials used in creating the corsage to ensure it holds together well. However, excessive use of tape can lead to a bulky appearance, detracting from the elegance that is often desired in corsage designs. Additionally, too much floral tape might make the corsage uncomfortable to wear, as it can restrict movement or poke into the skin.

In contrast, using fresh flowers for all types of corsages is sometimes appropriate, but there are instances where dried or silk flowers might be more suitable for specific occasions or styles. Matching the flower size to the wearer's outfit is advisable and generally helps create a balanced appearance, while hydrating flowers before assembly is a good practice to ensure their longevity and freshness.