The lab coordinator can make a decision regarding such requests. In general, if there is no violation of ethical or safety guidelines (e.g: chemicals, bacterial strains) we can provide material for demonstration or science communication. In some cases, cost maybe recovered from the school/ user. Regarding quiz questions etc, please note that the quiz itself is a learning experience and it may encourage rote learning if the list of questions and answers are provided to the students without the experts' presence.