What type of paper should I use when transferring ink to rock surfaces?

I'm trying to make a sign for outside the house that is on a slab of rock I bought. I made the design in illustrator. I'm going to print it backwards and apply it to the rock. What type of transfer paper would work the best for this? I thought about iron on paper but I highly doubt that would work. Is there any transfer paper for this type of job?|||Using a glue stick, stick the paper you printed to heavier posterboard or cardboard. Cut out the pattern with an exacto knife. Presto. You now have a stencil you can use with spray paint.|||I don't know anything you can do that with as the ink needs to be absorbed by something and rock won't do it.