PLEASE NOTE - There is a 2018 revised version of this video found here. I have also linked to it in the video.https://www.youtube.com/watch?v=qcHoVWBXL7Y
Materials Needed:
Sharpies (whatever colors you like)
Isopropyl Alcohol (Rubbing Alcohol) 70% or 91%
Pliers
Scissors
Exacto Knife
Plastic cups
2 oz. Bottles (or whatever size you like but the "recipe" is according to about 2 ounces of alcohol)
Gloves
A good link for droppers, amber glass bottles, spray caps and spray bottles is sunrisebotanics.com