Tea Dyeing is a simple ageing technique, used to give paper or fabric the appearance of a yellowing, aged, or antique look. It is often used in scrapbooking and costume making.

Tea Dye is a form of Natural Dye. It is the tannins in the tea leaves that cuases the dyeing effect.

Tea Dyeing can be done on paper or on fabric. For paper items simply boil water and moisten a tea bag and apply it to the paper surface in a similar way to a sponge, squeezing the bag periodically to darken the color of it's stain, further darker spots can be created by letting the tea bag sit on the paper for 10 minutes or so. 

For fabric, make up bucket of strong tea and soak the fabric in it for an hour, drying and pressing it. This can be further enhances for costumes, by flicking the old tea leaves on the fabric and leaving it to dry in the sun.

You can enhance the ageing effect by carefully burning the paper or fabric, by brushing it quickly across an extremely hot surface or naked flame, or, after dyeing scrunching it up, drying it in the sun all crumbled, and then once dry iron it flat again.