Recently I read that a freshly taken PolaroidTM picture can be applied
to the skin and the ink will dry to the skin, rather than the photo
(causing a nifty temporary tattoo).  Excited, I bought a PolaroidTM
camera and tried it, but to no avail. I searched online for any
information on it, also to no avail. Is it possible to do this? How?
Does it require anything special?

Here you'll find details on how to transfer a Polaroid image. Note
that this works only with certain kinds of Polaroid film. No mention
of transferring onto skin, though:

http://www.silverprint.co.uk/pola2.html