This is the fender and running board step off of a high end custom boat trailer. Unfortunately, as these units get old enough (2 or 3 years) that things might get damaged, they have also gotten old enough that the parts are no longer available. This was the case with this fender.
To the East Tex "magic", the damaged and shattered area was cut out and then rebuilt with layers of fiberglass cloth. The area was trued back into the lines of the fender and then the entire fender was sanded down and given a new metal flake gel-coat. The black edge trim has been installed but the missing non-skid (on the left side) won't get installed until the fender is mounted on the trailer.
This mid-1990's motorhome got a little too close to something with the left rear and heavily damaged the fiberglass corner trim. At over 20 years old, body parts are almost impossible to find, so we rebuilt the damaged one.
After removing the crushed and mangled area of the old part we made a mirror image form from the right side and replaced the damaged area on the left side. Sand it, surface it, gel-coat it and it's just like new.
Unfortunately, our "cub" photographer (one of the shop hands) took the "finished" photo. Not sure if he was looking through a palm leaf into the shop light or what.