Instructables
Picture of How to make airbrush
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Required materials:
marker
syringe with needle
piece of hose
valve from a bicycle or car tire (I did it by bicycle)
hot silicone
this site got the idea: http://airbrushdoc.com/tipstricks/how-to-make-your-own-airbrush/
I apologize if I have errors I am from Bulgaria and translated by google translator