Wedding Cake Stamp

"The 2009 Wedding Cake stamp is being issued at the
two-ounce mailing rate in order to accommodate the heavier weight of an
invitation. In addition, the price covers other mailings such as oversize cards
or small gifts that require extra postage. The stamp depicts a three-tier
wedding cake topped with white flowers, their green stems and leaves a
delightful contrast to the cake’s creamy white frosting."

Source: United States Postal Service