Tech Deck Pict How Do I Paint My Tech Deck Wheels Without Nailpolish Or Spraypaint?

How do i paint my tech deck wheels without nailpolish or spraypaint? - tech deck pict

Hello I recently received a package of high technology and its co Skateboard sugar. One and all his (almost) blue. looks very cool and nail polish so I have to make so far as whell blue truck, but now I can not understand how the wheels of someone who can help me?