Hey Julie
I have used a blender pen with watercolor pencils and I thought it worked pretty good. There are also pens you can buy that you fill with water. There is a brand called Aqua Painter (I think). I got one at Hobby Lobby or Michael's or somwhere and I can't remember the brand. I have a hard time using a brush. I don't know if it's because my fingers are too fat or what. I just find some kind of pen easier to use and control with out getting color all over the place.
Judy
Create like there are no critics.