While the lint is soaking you can make the deckle and the mold, integral parts of paper making. The mold is a frame with screening (like window screening) in the center that is used to catch the lint. The deckle is a frame without any screening. It is placed on top of the mold and gives the paper smooth edges.
Both should be the same size.
The deckle and the mold are used together: the mold on the bottom (screen facing up) and the deckle on top.
You can choose to make the frames with old wood pictures frames, or even cardboard covered in duct tape (so that it is water proof.)
Make sure the screening is pulled tightly across the frame.
To add the screening to the mold, use a staple gun or nails.