From their announcement:
The Zombie Cheerleaders are now available at VFM. Get the “gurls” Individually, as a Squad, or as a Pyramid Team. They have been chewed up and spit out, but they still cheer the fear.
The Pyramid team comes in three pieces, with some of the girls connected together to form the pieces. Glue the pieces together or keep them separate for easy transportation.
The pyramid easily stands on its own without glue when the pieces rest against each other.
Find them in the Creatures Section of the Victory Store.