Red Bliss Designs - remember the Bridesmaids scene when Kristin Wiig gets the shower invitation and birds fly out of it? or something like that? Well, that's what Red Bliss makes. Check out their portfolio http://www.redbliss.com/
Paper Source is a midwestern favorite ! They designed my own wedding invitation, back in the "old days." Wonderful gifts, colors, wrapping papers, cards, you name it. Online, Catalog and brick and mortar! I went to their warehouse sale in Chicago once... it was intense. !
Paperless Post - Design your own online or print invite... with a little help from fabulous designers like Jonathan Adler and Kate Spade. Vibrant templates, cheeky sayings -just add your own party details and await your event!