Catherine Pooler - Sentiments Stamp Set - Favorite Day Ever. They say you shouldn't have a favorite, but this stamp set might become one of yours! The Favorite Day Ever Sentiments Stamp Set contains mix and match sentiment stamps for creating the perfect greeting for all your favorite people. Tell them "you will always be my favorite" or "you're my favorite partner in crime". This set was designed to coordinate with our Favorite on a Line Die.