My DIY Save The Dates

message in a bottle, passport, and boarding pass

For our havana nights/miami theme, we want guests to feel as if they took a trip to this area. Our save the dates will have a plastic message in a bottle(which guests can keep for a keepsake, a boarding pass(which will be the actual save the date-will post my example later), and a passport (which will have info about how we met, travel info for those that want to go ahead and book and hold our magnet and sticker for calendar)... I am going to make a bridal party project out of this, I need help!

We were originally going to use glass bottles, but the postage was ugh! So the plastic with exactly measured sand, and everything else came to1.63 per invitation... Mommy said she would take care of it (yay to mommy!)