How do I send in a prank?

How would you use today's prank "Google Nose", if it was possible to make? A mobile that identifies as well as dispenses smell, can even record smell and send it like an email etc.

• How would you use a mobile phone that has a smell diffuser/absorber to encode and decode smell? Some research links would be appreciated, if it's going on. See my comment to 's answer and come up with some innovative ideas to use it. It might actually be possible, who nose? https://www.google.com/intl/en/landing/nose/

• Answer:

  There is a lot of research into electronic noses, mostly for medical purposes. It's pretty advanced. I can't imagine why someone would want it on a cell phone. I do, however, like to sniff calculators. Korean calculators from the 1970s are my favorite. They have just the right blend of butyls and phenolic.