Board Thread:Questions and answers/@comment-35642619-20180521003614/@comment-27306930-20180521015725

Flat is right, epoxy putty. If you cut the shell right, the hole in the handle is fairly small and downward facing. Maybe you could leave that one alone.

If you decide to fill the openings in the shell, do one side at a time. If you just jam epoxy putty in the opening, you'll effectively weld the shell together, and you'll never be able to open it easily again. Build up a good 1/4 inch layer for strength, then sand it smooth when cured. Painting is a little more tricky. I'd just hand paint with a little Testors model paint. Quick & dirty.