DIY rubber stamp invites
This tutorial from Oh So Beautiful Paper really shows how easy it is to go DIY with your invites – every single one would be unique.
I would go even further and print my invitation/RSVP text on the card and pick up some stamps from my local craft shop. Floral patterns work great here, you could also try circles, butterflies, leaves, or of course hearts!
TOP TIP: Print your envelopes with a gorgeous swirly font in a colour that is as close as possible to your envelope colour. Then go over the printed address with a good quality gel pen for a beautiful hand-calligraphy-effect envelope.