Sounds great (being a teacher)! I eschew scarves for juggling (no mass-center, no weight, no resistance). I'd split them up in groups of like total beginners (1 ball), rookies (2-3 balls, 2b-shower, few throws cascade), `experienced´ (able to do basic tricks). Maybe wear a mikro \ voice-booster (control kid's voice-noise-level anytime when required) .. but .. well .. 16's not that many one might suspect. ((But very rarely had more than one pupil))
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