The other day I saw a card by Emily Leiphart on her blog Art from the Heart that totally inspired these cards! Click on the link to go see her card - SOOO pretty! This was a bit of a stretch for me to keep these as simple as I did...it was so tempting to start embellishing more...but I managed to restrain myself from trying to add too much to them!
Anyway, I just stamped the bike and sentiment from Unity Stamps on a plain white card, colored only the balloons in a solid color, then covered the balloons with Glossy Accents. Finished off with a bit of Baker's Twine on the side. LOVE how simple and clean these are!