one that should be correct-ish (I kinda stopped making up stuff and just copied one of mine for the last 15 chars) is:
(I made the PNR record number be 'COFFIN').
They're formatted according to this document:
http://www.iata.org/whatwedo/stb/Documents/resolution792-june2010.pdf
Interestingly, the WWDC passkit presentation where he has some SkyPort Airways boarding pass examples with an aztec code (the big square one) actually have real information, but the PDF417 example immediately following is made-up.