During the past semester I studied several different ways to add decoration onto my pottery. My favorite way to add images was the iron oxide fire on decals. It is a wonderful technique to use on handmade ceramics or even reclaimed vintage ware.
Here's how it works:
To start choose the images you'd like to use and paste them into the word doc and fill up the entire page. Next you'll need a special decal water slide decal paper and print out your images on to it.
Not all printers ink will work for this, check your printers ink contents, make sure it contains iron oxide.
What gets left to make the image in the end is the iron.
Firing:
Cut out your images as close to the image as possible. And soak it in warm water till the paper part separates from the clear sheet that has the printed decal image. Then slide the image onto a finished glazed piece and use a sponge to remove any air bubbles. And fire it between cone 06-05. The clear sheet is burned away as well as the all the ink ingredients except the iron, giving you a fun and funky vintage looking image.