This Holiday season send send a Christmas card they will never forget. A card company called Fart By Mail has launched a novelty service where you can mail a smelly package to an unsuspecting recipient! Each sealed, airtight package contains a rank burst of air and costs $8.99. It also comes complete with a personalized greeting card and makes a comedy fart sound when opened. When the envelope is unsealed, the victim immediately gets a whiff of something foul!