Okay I know this is cup community, but I thought many of you would appreciate these. They are sea sponges that claim to be sustainably harvested, that can be used as tampons. They are reusable up to six moths. Not as good as a cup, but better than once. Anyway I thought I'd show this link for anyone who was struggling with cups or trying to convert friends to more sustainable and safer products. I have never used one and don't really plan too as I have fallen in love with my diva, but this could be a good option for some.