Well it could be a Halloween gift or you could send it to someone you want to get revenge on.  Morticia is a set of 1 dozen decapitated roses and then Dirty Rotten Flowers are a bouquet of decomposing flowers.  They actually also have the Still Alive bouquet that is a dozen perfectly normal roses.  Their prices range from $25 to $55.  The $55 obviously being the fully alive and pretty set of roses.

Source: Gizmodiva