Does anyone know where I could find small assortments of machine screws? I would like to have a couple on hand for mocking up scales, sanding, etc. I can't find any small enough in the local hardware or craft supply stores and I don't have a local hobby shop anymore. I hate to order 100 when I am never going to use them. If not, does anyone need any? If I end up buying 100, I'd be happy to share. Thanks!