make the heart out of paper and write the "save the date" on it, both of your initials and the date super simply, and then the actual wedding invitation with it! then they can put the real invite somewhere nice and the little heart paper on the fridge!
To foil or not to foil! That is the question. Here's a gorgeous save the date flower/foil combo we did recently on our premium white card. Love the little foil dots too! Any of our designs can have a little or a lot of foiling with colour.