Man I had to do this crap in my Public Speaking course....lots of fun. Of course I did the mountain bike tire demo.....
One guy did a skydiving lesson (he jumped a lot) and showed the neutral position and stuff on the floor, brought in all his gear.
Another guy did "how to roll your own 'tobacco' in a Philly Blunt." Haha.....he removed the tobacco inside and replaced it with his own. Of course when he was licking the wrapper he got a little tobacco and spit it out quickly proclaiming "I hate tobacco."
It was mildly amusing....
Still looking for ideas?
What kind of skills do you have that you think others may not? It's easier if you can pick something that you are intimately familiar with.
How to pick a "how to" topic.
How to tie a tie. I'd recommend showing a couple different knots rather than only one.
How to pitch a tent then properly pack it.
How to meditate.
Just sit there quietly the whole time.....
b