The tartan pattern used on their wedding invites and pocket folder is a Clan Tartan, which is the regular pattern of the Groom's family.
While Daisy is the born flower of the Bride. The wedding invitation suite includes a folder, with the wedding invite attached to the middle and a RSVP card inserted into the pocket. The whole set was printed on ultra thick Japanese textural papers which give their wedding invitation the extra special touch.
This is a mock up made by the bride!
This is the final design piece based on what the bride wanted: