Powder paint is the way to go! Check out Rosey's Powder Coating | Rosey's Powder Coating for a 50% off sale on a number of basic colors. They're sold by the pound but choosing from the half price item's can get you all the color's you'd need for the same $ it would take for the same colors in 2oz jars from most suppliers. You would just need to get your own jars. Also, check out YouTube video's on powder coating for tips on getting some cool effects.