I like to use at least two different colors. Or two blues, etc...Then I pat them down with my fingers. You could use a inking tool to keep your hands cleaner...Rinse in hot water after you get the colors you like. Repeat inking if you don't like what you see.
Or you can press them on a paper towel with a iron until dry. Still be wary of them bleeding. I would wash them at least another time. I'll wind them on cardboard and add to my gift stash.
Or you can 


