How to Light Off a String of Illegal Fireworks Without Getting Caught

1. Buy as much illegal fireworks as you can
2. Buy some more
3. Buy a lot more (I know you bought quite a bunch already, but you probably aren't listening to me: you need to buy so much that's it's absurd the amount you have hidden in your garage. And… and, don't forget the most important part - they're all illegal! None of those dumb flowers or cheap aerials). 
4. Get the picture?
5. Run on your free time to get super duper fast. 
6. Distract the local police - this is most easily accomplished by giving them a falsified tip about where to find the biggest, baddest drug lord. If your town doesn't have any, then conjure up a snappy name and pretend the criminal(s) is holding you hostage. Make certain the crime is taking place on the other side of town. The farther the better. 
7. Connect the fireworks together with tape that isn't immune to fire. 
8. Lather the tape - preferably duct tape - with buttloads of gasoline. 
9. Light fuse…
10. …Run away…
11. If didn't pay attention to Step 5, get yourself to the hospital pronto; do so after enjoying the show, of course.
12. Repeat until you've achieved pyromania.