Stripeyknickers - I don't have a mooncup, that's why I'm ecologically challenged...
Our local clinic has leaflets about them, they look a bit insecure for me. TMI alert - ever since I had dd, I tend to spend the first 3 days of TOM not far from a loo, as the erm... flooding is of tsunami-like proportions. So if I had one of them I think I'd spend those entire 3 days on the loo/washing the damn thing out!