Making your own envelope liners is an easy DIY project! Envelope liners will elevate your invitations and can allow you to add another detail that represents your wedding / event. I added an envelope liner to our save the dates to showcase our venue. Our wedding was an out of town location for most of our guests and I wanted to give a glimpse of where we were getting married. For our wedding invitations, I added an envelope liner of a custom oyster shell print. Oyster shells were a main decor element…