A number of crafts, such as doily streamers and paper snowflakes, call for stiffened paper. Paper is fairly easy to stiffen using the following steps.
If the paper has folds in it, heat up an iron to a low setting so that it is warm and not hot. Use it to gently flatten the creases.
Use a fabric stiffening product, such as spray starch or a roll-on stiffener, to coat both sides of the paper.
Leave the paper to dry overnight.
Projects such as doily bowls call for a harder surface than fabric stiffener can offer. Crafters can use glue to stiffen paper in these projects using the following steps.
Dilute white glue with water.
Use a paintbrush to brush the glue mixture onto both sides of the paper.
Shape the paper over a balloon to give it its shape.
Crafters using thin or delicate paper such as doilies should layer the paper by brushing more of the glue mixture onto the form, adding a layer of paper and then brushing over the paper.
Let the glue dry completely, then remove the form.