I also went to high school in DFW and remember these obnoxious things well... teddy bears, cowbells, plastic whistles, you-name-it.
In my days (class of '91) mums went from double to triple, and also the first "over-the-shoulder" mums appeared. Yes, it was utterly obnoxious, but also somewhat of a rite of passage.
However, our insane mums had nothing on these "beauties."