Make a fully recyclable mudguard

I hate mudguards. They break, they are heavy, noisy, difficult to clean, but most importantly: UGLY! But, at the same time, you need them to stop you getting a a wet bottom... right?

I sugru-ed a standard bottle cap into my seatpost. That simple!

When it rains all you have to do is pick up any plastic bottle from the street, screw it in and PRESTO! you have a mudguard!