A snowman's advice for an 11-year-old's Christmas gift is to get something that is both fun and practical. Consider getting a gift that the child can enjoy while also learning something new. For example, you could get them a book about their favorite topic or a puzzle that challenges their problem-solving skills. You could also get them a toy that encourages them to be creative, like a drawing set or a craft kit. Ultimately, it is important to think about what the child would enjoy and appreciate the most.