While my card isn't technically a one layer card (I used a new die set from Mama Elephant: Femme Frames), I did use one of the techniques from Erin Lincoln's video: embossing! I used Memento Luxe Tuxedo Black ink and clear embossing powder for the "congratulations" sentiment.
(Supplies - Stamps: (Papertrey Ink) Bigger Blooms. Ink: (PTI) Aqua Mist, Hawaiian Shores, Limeade Ice, New Leaf, Simply Chartreuse, Soft Stone (Memento Luxe) Tuxedo Black. Cardstock: (PTI) Aqua Mist, Simply Chartreuse, White.)
Have a wonderful Friday!