There are several brands of this I'm sure, watch for the sale ads at hobby lobby. A friend used to use them to price the fish in the aquariums of his pet store. I figured I'd borrow a few different colors to do an autograph guitar that turned out great multicolored signatures,
Recently I got some more to start another guitar, a J-45 sunburst. I figured neon colors for George Jones, Willie Nelson, ad hopefully Merle Haggard next.
Great colors, The darker colot with George Jones 4"tall john hancock looks great. The next fuscia on blondeish wasn't good contrast and my Willie is a bit harder to see.
Color matches, now that you mention it, the orange one I have prollu would be a good touch up for the pin 350f stripe.