Thought i would give my No Fear pin a bit of a facelift with some Red, Yellow & Black markers.
Here are some before & after pics.
Lots of tapping with finger to kind of blend the Red into the Yellow.
Although it's not perfect it does look better than it did faded.

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I was using Artline markers which kind of stay wet for about 10secs or so & gave me time to tap & blend.
I don't know if there available in the U.S.

Here are the markers i used, the chisel tips are the way to go as you can cover more area than the bullet tips. The Black & Red are 100's (chisel tips) & are 1 cm wide all round the Yellow is a 70 bullet tip but i just cut off the tip to where it was flat to get more coverage. I couldn't get a 100 in the Yellow so it took a little more time color in the areas that needed yellow.
If you happen to go out side the area your coloring in don't worry too much as the black on the cabinet hides it.
Also use in this order Yellow areas first, then Red then Black, If you try to color in Yellow around Red the Red will bleed & stuff it up so you could imagine what will happen if you try to color Red or Yellow around the Black plus it will affect the marker & you will need to use some paper or board to clean the tip.
Keep the pen strokes going in the same direction not back & forth especially with the Red as you will end up with much heavier areas than others.
If your going to blend color just finish slightly above or below area to be shaded (blended) & with your index finger tap vigoursly until desired effect is achieved.
Obviously wash your finger ever now & then when needed.
An alcohol based solution & a rag or 2 will also be handy so you can wipe off if your not happy with what you have done & you can do it again.