Spirit Day shirt ideas?

Okay my mascot is the Lynx and our school colors are gold/yellow and navy blue. I have a yellow shirt with a round neckline in the front and a couple of gold beads around the neckline, but I want to add more originality to it. Any ideas??? I have silver puffy paint, glitter glue thats gold, and glitter. ANY IDEAS ARE APPRECIATED! THX!;)