bag or two of green army men from dollar store would work, have heard of it being used by some in the dirt bike world to repair fenders. use heat gun to melt it down and fill where needed, then iron to weld it in around the edges. groove and fold over the area, then smooth out the surface.
heagachongoose: ok that actually helps a lot! Thank you!
Thrstrmech: that is ingenious I'll have to keep that one in my back pocket for future reference for sure!!!!!