Cut out some numbers and letters out of a magnet sheet to use for my car this weekend at an autocross. This will work out much better than the masking tape that left marks in my paint. Took like a half hour of clay and compound rubbing to get it all off. Hopefully I can keep using these numbers at other events, otherwise I gotta create some additional ones I suppose. It was much cheaper than buying pre-made numbers, that's for sure!