Personalized Funny Ketchup Or Mustard Infant Dress. Funny Ketchup or Mustard Joke Infant Dress - White with Stripes says Ketchup or Mustard? That is the Question! Great gift for just about anyone. Art c. Ne' Metzger. Your little one will be adorable and comfortable in this 100% combed ringspun cotton 1x1 baby rib dress!