These cute birthday cards where inspired by this pinned beauty. I shrank the card base and upped the balloon count. The card base is 4.25 x 4.25 intentionally. With the balloons extending upwards past the fold line they will still fit into a standard A2 sized envelope.
I always love a project that allows me maximum washi tape usage. This fit the bill. I used tons of different selections from SU!. I stamped with SU! Balloon Celebration set in Momento Tuxedo Black ink on various card stock and punched out the balloons with the coordinating punch.