Create your own rub on using wax paper and your printer. Most computers come with the program Paint. Open it up, create a text box and type in the word or phrase you want. Scroll to the top of the window and under "image" choose "flip/rotate" and click on flip horizontal, this will flip your text where it reads backwords. Using a piece of wax paper cut to the size of a standard piece of printer paper (you may need to attach it to the printer paper), print the image you have created onto the wax paper and quickly place the printed image down onto your paper and rub the ink onto your card or page. It may take a little practice but you will get the image you want to complete your project.
My tip has been printed in Vamp Stamp News October 2007. You can also find it somewhere in the archives of the yahoo group MidWest Stampers. Enjoy!