My wife shaves with a DE. She started out with an EJ razor, then a Gillette Black Beauty, and now a Lady Gillette. The Lady Gillette seems to be her favorite. I think if there is one your wife will like, that may be it, and they are readily available.That is SO COOL that you had a female "Bingle Buddy!" I'm shocked, actually, as there are so few ladies on here, actively, anyway.
My wife has not yet tried a DE.... I've thought about getting her and old Gillette long handled razor that had the star bursts on the handle. Cain't remember what they were called. I believe my mom used one; I'll have to ask.
LOL, if my lovely bride doesn't take to it, I suppose I'd use it, since I have always wanted to own one of those! They just scream 1960's!