It's a creative -- and highly practical -- music festival tradition: Creating the most unique flag or sign to raise above your group, making it a breeze to find your friends in the crowd.

The tradition is no stranger to the ACL Music Festival, where this year the creative juices were flowing full force -- despite an overload of "Rick and Morty" references.

Here's a quick look at some our favorite signs and flag poles we spotted during Weekend Two of the festival.

PHOTOS: Flags and signs spotted above ACL Music Festival 2017