Activity for Carmen

We're getting married on December 5, 2017 and having a celebration of our marriage a month later on January 6, 2018. What date do we use for our wedding favors, our personalized champagne flutes, etc.?

So we have lots of family who live out of state. I understand that most wouldn't travel to attend a wedding due to a variety of reasons. Do we still send them an invitation? We don't want them to feel that we want a gift or that now they are...