After seeing this on Made By Momo I knew I had to make some :) I went to Wal-Mart and bought the post its and the acrylic frames (3x5) came home, went through my scrap pile and pulled out anything that would work. Needless to say I didn't cut any new sheets of paper and made about 10 of these cuties. I purchased a big thing of pens at Sam's Club and although they aren't the RSVP pens they still worked great, I just didn't have as big of a spot for the matching paper.
This is what they looked like when they were all done. I put them in a little cellophane bag and added a tag with To: and From: on it