I recently saw a TED talk where they printed a human organ... like maybe a kidney. I read an article a few years ago about a company trying to raise money to create a printer for printing HOUSES.  The possibilities get boggling.

Found it
http://blog.ted.com/2011/03/07/printing-a-human-kidney-anthony-atala-on-ted-com/

[and of all the Google "improvements" over the years, the link cloaking in the SERPs is the one that aggravates me most on a daily basis and makes me think "screw them"]

I think they've been printing skin for a while now...for burn victims etc.

I've seen the printed houses concept. Likewise there is a firm in Koreo (I think) with a printed car (it's actually just the body panels).  Another outfit are printing with foodstuff, which is pretty cool.

>body part

3D photoshopping will be a growth industry.