Turquoise cartoon planets with cheerful faces and crowned tops repeat across a bright yellow ground in a playful grid formation. The retro character artwork channels vintage mid-century illustration with its simple shapes, bold outlines, and primary color palette that radiates childlike wonder and nostalgic charm. 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.