Mine are going out to people who we wouldn't expect would want to go to mexico too. So I want to make them a little more detailed. They will be postcards with 2 engagement pics on the front, our logo & website & text on the back. I'm thinking something like this (but better).
We are getting married in Riviera Maya, Mexico on June 21, 2008! If you'd like to join us, all the information you need is availble on our website. We will also be having parties in North Carolina and Texas to celebrate after the wedding. Formal invitations to these events will follow.
I really need to work on what to write to make it sound better, but that's the general idea. I don't want people to feel pressure to go by getting something that just says save the date. I always worry too much about offending though.