According to the email confirmation I got from NESBA for my track day this upcoming weekend I must have a number on the front of my bike or both sides of the tail. I have a passenger seat on the tail so I need to put it on the front. This is all beside the point, I have no idea how to apply a number to the bike... I know the number needs to be between 1 - 100 but does it matter at all? What do I use to make the number? Where can I pick them up QUICKLY?!?! Flame... ON!