I saw a video once where a guy was fixing plastic parts (not bike or trike parts) by melting strands of wire into them... I was wondering if this would work for a fender? he had a camera tripod that one of leg adjuster handles snapped off, he held a wire between two alligator clips and used electricity to heat the wire then just laid them across the break and they melted into the plastic, once cooled it was like new! here it is... he says it may not look pretty but its stronger than the original... lol hes right, its butt ugly. but maybe some re shaping of the repair site will make it look nice again! https://www.youtube.com/watch?v=ziPutFi1BlI