There are numerous artists creating wonders with handmade paper. I wrote another post about two-dimensional techniques recently, and here are some examples of three-dimensional paper techniques. These are featured in The Papermaker’s Studio Guide as well.
Let’s start with the least dimensional, which would be embossed sheets. Here’s an example by Margareta Mannervik. By simply laying wet sheets of handmade paper on top of an embossed surface (like a plaster mold) you can pick up fine details like this: