I just wanted to share my excitement that my passport invites arrived today! I ordered from sheilamaridesign on etsy and had her customize it.
I ordered 100 prints through catprint.com (would highly recommend them!).
Here's the breakdown of costs:
Passport Design/PDF File - $65
100 Passport Books - $186.44
100 RSVP - 45.35
100 hang tags - $26.87
150 envelopes (from paperandmore.com) - $41.97
Total: 365.63 for 100 invites (not including postage)
Probably not as cheap if I did it completely DIY, using free templates, etc. but I am so glad I didn't have to deal with the headache of trying to design them.