Flowers: Legitimate Campaign Expenditure?

As spring is bringing out the leaves on the trees and mother's day approaches, people are beginning to think flowers. However, are flowers an appropriate campaign expenditure? Two Representatives spent over $10,000 on mother's day flowers the past couple of years. All federal campaigns have spent over $700,000 on flowers since 2005. Yikes! I mean, is that what donors pay for? Move over yard signs, bumper stickers, and literature; flowers are the future.