For the wall paper I printed on an 8 x 11" sheet of drawing paper. I used the drawing paper instead of regular white printer paper because it had a better texture that reminded me of real wallpaper.
For the fabric I used some printable fabric that I purchased at JoAnn fabrics (click image link below). This comes in a roll that you can cut to size. The printer that I use has the option to set the paper length to anything I want, which is nice if you want to just print one long continuous piece of fabric.
I hope some cute little dollhouse rooms can be made with these. If any one uses the wallpaper and fabric and posts pictures please feel free to post links in the comments, I would love to see how they are used.