ok folks.. i need some help.

I have to hold a 4 hour session/tutorial at a conference next month. It is a leadership conference for kids aged 16-17. It's the Shad Valley Conference if any of you know it.

Anyway, I need a topic for my tutorial. It can be anything provided I know about it. Please suggest topics. I could use some help as mt creaivity seems to have run off somewhere.

Topics by other presenters range from Break dancing, social awareness, architecture and math, adership/diversity session, DNA of a nacho chip, building solar cars, stock market trading at the trading floor, modernizing shakespeare, physics of music, HTML creating, geology lab, biomechanics in the kin dept, disability awareness, lots of medicine based ones, water clarification etc.

The conference is supposed to be interesting yet informative. People should walk away having had fun but also having learnt something new, or with some food for thought. My session time slot is 4 hours long and spans two days.

any ideas on topics I can cover? If you have an interesting idea, I wouldn't mind reasearching it and learning about it, so please, by all means, suggest almost anything.

ps: no sex ...