I was looking around on the internet to try to see is pilot sells their FriXion pens in white. the reason I need to know this is because I want to make a signature vanish from a black card without it leaving smudges. if anyone knows if they sell white FriXion pen and/or where to get them it would be very helpful, also it does not have to be Frixion but it does need to work in a similar manner. thank you for your help.