I think the one Ruben means is Ver 1 which is possibly available here ...
Sailor Moon Free Figure Papercraft Download
There is also an improved Ver 2 which is available here ...
papermike: Sailor Moon
Admin please block these if you consider either to be pirated in any way.
I have the Ver 2 one in my 'To do' pile. It certainly looks much better and is in .pdo format. I have not attempted to download the Ver 1 figure.
There are also quite a few Chibi and Cubee style figures from this series.
I don't have any further knowledge of the Sailor Moon series though. My granddaughter wanted a Cosplay outfit, and I stumbled across these while looking for it. I ended up buying the outfit for her, but, apart from the little chibis above, I've not attempted to build the model yet.