Big Mouth © Sunny Mars Designs. This funny friendship greeting card features a cute cartoon vector big open wide mouth with plump luscious red lips and perfect white teeth on a greeting card with a green background. The card writes "you make me [smile]" on the the cover and "thanks for being a great friend" on the inside. The card is fully customizable. Customize and personalize it by adding your name and details. Perfect for dentists or promotional products for a dental practice. More dentist stationery, marketing and promotional products can be found in the sections below: