The colors I currently use, Traffic Orange, Yellow Green, Carolina Blue I got from Smoke over on the CastBoolit Forum. You can get 1 lb. of any color he has or $18 shipped or split it into 3 one-third lb. bags of three different colors for the same price. I also plan to buy a couple colors from Eastwood that I like as well.
In general, I do all my powder coating outside in my shop as long as the air is dry and humidity is 45% or lower it helps create lots of static electricity. If not I coat in the house place on my trays an bake on the back porch. I generally keep three trays going all the time one baking, one cooling and one I'm setting up the next batch to be baked on.
I use white plastic containers like old cool whip bowls or pint size containers with screw on or snap on lids. I usually fill it about 1/3rd. full with plastic multi-colored necklace beads I get at the local craft store for a few bucks a bag which can be washed off and reused again over and over.
Before adding powder I give the beads a 30 sec. shake in the container to help build up the static charge. I add about 1/2 TSP of powder and about 50 to 75 bullets depending on weight an caliber. and give it a good shake for about 30 sec. and see how they are coated. If they need a bit more coating you can give them another 30 sec. or add just a pinch more powder to much powder is as bad as not enough. After a little practice, you get the hang of it. Then I just pluck them out one at a time with some large tweezers and place them base down on nonstick aluminum foil and pop them in a preheated convection toaster oven for 20 min. at 400 degrees.
45 ACP cup points coated with Smokes Yellow Green ready to place on the tray.
Finished bullets ready to load.
Some 38 cal. 155 gr. NOE bullets for my Lyman 358156 HP clone mold. I coated them with Smoke Yellow Green and Carolina Blue. I'm going to use the Y/G for 357 and the Carolina Blue for 38+P.