It's very simple trick to make a lot of sparks, spending less than 2$
-piece of steel wool
-1 meter wire (for example copper wire)
1. Take wool and bind it to wire (make sure that it won't fly away when you'll spinning it)
2. Light the wool with the match (it won't burst in fire, but only glow)
3. Start spinning it, holding wire on the side without wool.
Thousands of sparks!!!!
Here is the effect:
Best part at 0:14