Well, this was given to me as a keyring but it could be used as a charm for a handbag, Filofax or Midori. And indeed as a keyring, as intended. I have it at the moment as a charm on my black Kensington. I take the keyring off and fasten the leather loop around the rings of the Filofax.
I have the bat one but the cat one was also gorgeous. They have bigger ones and smaller ones. The larger ones are on a keyring and the smaller ones are on a lanyard like the charms for mobile phones.
Mine was a gift but you can buy them from the V and A shop (they are quite pricey there though) and also from other shops that come up when you do a search. Marcopoloni is where my ladybird one came from. They have a huge selection.
And wouldn’t this one be a nice one to put on your Filofax?