Enjoy this tutorial from Judy Perez on tea bag printing:
"Why the tea bag? Well, tea bags are a thin light weight paper that is translucent allowing one to see through them, they have a lovely tea stained patina giving them a vintage paper look and they are so thin that when it is adhered to fabric it literally disappears. It also has the benefit of being paper so media like inks and colored pencils work beautifully on them."
"One of the things that is fun to do with tea bags is print on them. The way to do this is scan an image into your computer or find some copyright free imagery on the net, and print it out on your printer. I have a black and white toner printer that I bought for this purpose, because toner ink will not bleed if it gets wet the way ink jet will."
Place a tea bag over the printed image and tack it in place with a small piece of scotch tape on each corner.
"Place the paper with the tea bag on it in the paper tray in the correct position to print out, usually it is face down top of paper going into the printer first. To double check place an x or other mark on a blank piece of paper and print your image on it, making note of how you placed the paper in the paper tray and the direction of the image when it came out."
Here is the printed tea bag, ready to be collaged.