Best noise making ideas!

Just wanted to bump this and encourage the who dat nation that’ll be in attendance to get loud! (preferably with plastic whistles and/or use other noisemakers that can go under the radar) Yea noisemakers are frowned upon by some but it’s playoffs and we need to amplify that dome voodoo. Myself and 3 other friends each bought a 24 pack of these whistles to hand out before the game and in my section. Hope I can influence some others here to do the same!