Online Help Desk: Best Markers for Signing Vinyls

A reader wrote us and asked “I bought a black 9″ vinyl that I plan to bring to Disney to collect autographs on. Do you have any idea what the best kind of marker (I was thinking silver) to use on a vinylmation?”
Let us know your opinions so we can help our friend out. What do you feel is the best pen for black and white vinyl? Is it a black sharpie? One of those silver paint pens? Leave a comment with your experience having people sign your vinyls, preferably brand and color! Thanks.