A pennant is a triangle shaped flag used to show support for a particular athletic team. Sometimes they are given out to a team who wins a particular tournament or title. Other times they are from favorite professional or college team. 

If you have one you want to include in your quilt, it's not an issue! You are welcome to include it.

Take into consideration the washability of the pennant. If it is not machine washable, the quilt will then become dry-clean only.