Ohio Rev. Code § 3743.47
"Do not allow children to play with fireworks. Sparklers, a firework often considered by many to be the ideal "safe" device for children, burn at very high temperatures and should not be handled by children. Children may not understand the danger involved with fireworks and may not act appropriately while using the devices or in case of emergency.
Set off fireworks outdoors in a clear area, away from houses, dry leaves, or grass and other flammable materials.
Keep a bucket of water nearby for emergencies and for pouring on fireworks that fail to ignite or explode.
Do not try to relight or handle malfunctioning fireworks. Soak them with water and throw them away.
Be sure other people are out of range before lighting fireworks.
Never light fireworks in a container, especially a glass or metal container.
Keep unused fireworks away from firing areas.
Store fireworks in a cool, dry place.
Check instructions for special storage directions.
Observe state and local law.
Never have any portion of your body directly over a firework while lighting.
Do not experiment with homemade fireworks."
R.C. § 3743.47