Final answer:
Spraying fresh pumpkins with a clear coat is necessary in arrangements to protect them from decay and preserve their appearance, inspired by Yayoi Kusama's iconic pumpkin sculptures.
Step-by-step explanation:
When making an arrangement with a fresh pumpkin, it is necessary to spray the pumpkins with a clear coat to preserve their appearance and protect them from decay. This clear coat acts as a sealant that helps to keep moisture out, which can cause the pumpkin to spoil more rapidly. Using a clear coat can help maintain the freshness and color of the pumpkin, making the arrangement look attractive for longer periods.
Clear coat spray is important in arrangements like those done by Yayoi Kusama, a Japanese artist known for her pumpkin sculptures, such as those installed on Naoshima Island in Japan, where fiberglass pumpkins were adorned with her signature dots. While her sculptures are made of more durable materials, fresh pumpkin arrangements draw inspiration from her work and similarly require protection to preserve their integrity.