This goes under the heading, "Why didn't I think of that?" I needed something to spruce up the old garden sign. I used a sharpie black permanent marker and in only a few days it faded.
Walking down the paint aisle at Menard's (Midwest home improvement store), I came across this Rustoleum American Accents Decorative Paint Pen. It came in a bunch of basic colors including black which was the color I needed. So I decided to give it a try!
Well lo and behold - it is totally wonderful! It worked like a charm! It has a chisel tip so you can make fat or skinny lines and you have complete control and freedom of movement. It goes on just like magic marker but with the durability and saturation of paint.
I can see it for monogramming pillows, signs, furniture touch-ups, calligraphy, the uses are endless!