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I believe this was one of the first websites I found when I discovered Paper Modeling. I was so amazed at the range of models, and they are all FREE. He sells one, the Nautilus, an incredible model of which ou can find out more on his website.
The list of models he offers is, look! It is well worth the visit. It reminds me of when a friend would tell me about a Hobby Shop he found a couple of towns over, and we knew we had to go their Saturday and support it. Same thing here. If you haven't been there, then go visit. It is well worth it. It is a cornerstone of this hobby.
I believe this list is most of them, I think there are many more. What more could anyone ask for!