Hi there, your save the date idea sounds incredible! I would love to work with you on this illustration. I am a graphic designer and animator, and it sounds like this project would be really fun to bring to life. The idea of using the veggie devil and the chicken wing angel is hilarious and I love it (and can totally relate to it actually!).
Coincidentally, I am almost finished planning my own wedding (so that means I know all about what's "supposed to" go on the save the date cards, wedding invitations, etc...). If you look on my profile and find the drawing of New Orleans, that was the invitation I designed for myself (with the names/dates changed, of course).
I can work in a wide range of artistic styles and I'll be more than happy to talk with you about the finer details of what you want so that I can send you the perfect design! I also have a printer that I use who can print these things for REALLY cheap, if you're interested in that as well.
I look forward to working with you!