Or if Rachel knows about Frank's daughter (somehow I highly doubt Frank mentioned he had a [by now] 20 something daughter from a previous marriage where both his spouse & said daughter thought he was dead {Ruh Roh}, If the new Constrictor is Frank's daughter I think she would be fine with her using her late fiancé's paraphernalia, if it's another guy taking up the Constrictor mantle on the other hand...