I like the DIY process, so maybe I'm biased but I loved making my invitations, and the price worked out really well with a bit of research and shopping gradually with coupons. I DIYed my boarding pass invitations. Here's the price breakdown: Boarding passes and monograms on belly bands: Snow White 110lb cardstock, www.cardsandpockets.com, $32/200 sheets
Ticket jackets: Tabriz blue 110lb cardstock, www.cardsandpockets.com, $19/100 sheets
Black cardstock for belly bands: 65lb, Michaels, $1.50/25 sheets
Blue belly band ribbon: $24/6 rolls
Envelopes: Nero (black) No. 10 envelopes, www.envelopperinc.com, $23.80/100 (nice heavy quality)
Wraparound labels: full page labels, Staples, $6/25 sheets
Total cost: $106 Approximate cost per invitation: $ 1.06 The only thing that would increase this cost is the tools (glue/double sided tape, straight cutter, corner punch, bone folder and scoring board), all of which I had before I started but it could increase the cost a bit.