A charcoal pencil made by dry distillation.
Material:
1. Bamboo chopsticks
2. Charcoal
3. Furnace
4. Aluminum foil
Step 1: Wrap bamboo chopsticks with aluminum foil
Don't put too many chopsticks at the same time.
Leave a vent to release combustible gas out
Step 2: Put the package into burning charcoal
Burn the package continuous, until there are no more gas release from the vent.
Step 3: Get charcoal pencils
Homemade charcoal pencils
Homemade charcoal pencils
Ha ha~~ I drew the structural formula of TNT.
There were some tar stick at the Al foil which looks like rainbow.
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