A cheerful hot air balloon floats among puffy clouds in this playful illustration, its envelope emblazoned with "Be Kind" in bold, overlapping letters rendered in coral, orange, and purple. Colorful paper airplanes circle the scene against a soft palette of turquoise clouds and pale sky, creating a lighthearted composition full of movement and optimism. Printed on smooth white card stock and made to order, artwork on the front, blank inside, envelopes included in every set. A handwritten note that arrives as an independent artist's work.