Cowbells and glitter aren't exactly necessary at either event. In the end no one will remember if glitter or cowbells were there, but they'll remember a parent causing a distraction and getting booted from the event. There are battles to fight, these aren't ones that would be high on my priority list. To be honest a coach focusing on cowbells or glitter is wasting time and not getting their kids properly prepared for a big event. People seem too worried about fighting these pointless battles and having the focus be on them instead of the kids.