Case Suggestions for Bond Arms derringer

[Dwmckie]

I was able to get my wife a Bond Arms derringer for Christmas. I believe it's the Snake Slayer model, with the trigger guard. She would like to get a few additional barrels, so I'm wondering if anyone here has any suggestions for a case to handle the gun and extra barrels. Bond Arms doesn't make one. I'll probably have to cut foam and make my own solution, but thought I should check here first. Thanks!