Check out this lovely design for a business card that sprouts a miniature garden when you dip it in water:
The result was a business card that worked like a miniature house-plant, growing alfalfa or cress when dipped in water – a business card for 'another bloomin' designer'.
The logo was also cut into a 'seed stencil' that allowed the logo to be grown on either earth or lawn; on uncut grass, the message would remain hidden until the area was mown.
(via Geisha Asobi)
Update:
Stella sez, "Here is another creative business card that sprouts a landscape. The card is for a landscape architecture firm. On the card is a printed plan of a landscape design of a miniature garden. Seeds are embedded within the card so in just a couple of days the seeds will sprout through the holes of the print.