Personally, I like Derek's idea.
But I think the best thing you can do for your report is cite real life instances of positive shroom use. Look into authors, philosophers, actors/directors, there really is a whole 'society' that uses, intelligently mind you, shrooms. Like into Hinduism and soma, physcadelics were used in the making of the their hymns and prayers and compiled in a book which I cannot remember the title. Look into Greek philosophers - some of them are said to have dabbled in a form of physcadelic 'rituals' or rather gatherings. Far eastern/oriental as well. There is, if you can find it, a lot of very interesting information on the use of physcadelics. Not just your, oh I tripped boomers and had a life changing experience, which is all good and well; but theres more to it than that.
As far as humor goes, look into some Wavy Gravy quotes.
-AndrewP
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Go Fishing. Go Ride.