Don Stauffer
Also, a quick shot of Testors Dullcoat seems to work if hose is the right color.
That's the way I do it.
Also: you can use a water based color. As long as the paint is "semi-flexable" after it drys.
Laquer based paint will "EAT" the vinyl part's. And Enamel based paint's will "NEVER" dry.
( I once painted the letter's on some tire's using Testors White Enamel.... two years later, the letters were still sticky !)