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!
Einladung bei pixum 3 auf einem foto Drucken lassen und dann zerschneiden [ "Thank you sat the wedding. Or with thank you cards to send out to guest.", "save the date", "sunglasses is going to be the best idea you