Lefol Fenders with racks built on

This is not for my bike frame being built but I bought these 6 or 7 years ago with the idea that I would build up a 650b bicycle and use them. I never did. The are interesting as the stays also act as the point to attach panniers to the fenders. Novel idea. I am a little surprised I have not seen any other variations of them, just the ones made by Lefol.