A unique way to create your save the dates is to make it a scratch off card. When the recipient gets it in the mail, all they do is use the enclosed (or not) penny to scratch the card and the information about your wedding is seen! A DIY guide is here: http://www.marthastewartweddings.com/226949/scratch-save-date-how?center=272419&gallery=228884&slide=226948
A tip that other brides have used to make this DIY project even better: laminate the cards before applying the paint. It’ll be easier for the recipients to scratch off.