NEW Farmville Gift Feature - Send Marketplace Gifts (Buildings, Decorations & Animals) to your Neighbors

This is new in Facebook Farmville. You can now send selected items purchased from the marketplace to your friends and neighbors. (Earlier you could not send purchased gifts)

Here's the full list:
Buildings

• Gazebo
• Manor
• Tree House
• Pink Tool Shed
• Free Fall Ride
• Ferris Wheel
• Deluxe Carousel
• Super Spin Ride
• Farm Float
• Balloon Stand

Decorations

• Garden Gnome
• Scarecrow
• Large Pond

Animals

• Baby Turkey
• Orange Tabby Cat

Source
Farmville on Facebook - Level Up Game Secrets