Though it won't laminate the printout in that classic white-framed cardboard sandwich, Poladroid will at least put your shots in a pleasant border and tint them just so. Cult of Mac's Giles Turnbull gushes:
It mimics a Polaroid camera in every way, complete with a loud ker-zjeerrrrr-chikk sound as the photo pops out, and with the photos themselves having to “dry” as the initial brown chemical wash fades out, leaving the image proper behind.
It's free, too. Here's that link again: Poladroid. No, it will not banish the disappointment experienced using Polaroid's new pocket-size photo printers. Though very clever and compact, it's just not the same.
Poladroid Is Best Thing Ever [Cult of Mac]