Wow, Kas, that's a tough one. As others mentioned, there are cute options, so it's definitely something you can work with.
You've only been out with her for a short time, so hopefully the line will soften or disappear over time. We've heard several examples of that in this thread also. It is fascinating hearing the different stories about specific items that women won't accept, but they'll accept the crossdresser overall. Yeah, women are funny (says the guy that likes to wear dreses)