After I have a great sketch, I transfer it onto the vinyl carving medium by placing the sketch upside down and rubbing it with the end of my large exacto knife. It has a rounded end and doesn't tear the paper.
After the image is transferred to the vinyl, I go over the pencil lines with a dark sharpie to make them easier to follow and to eliminate any possible chance of smearing, which pencil is infamous for on vinyl. There's nothing worse than carving away on a design and then smearing it beyond recognition, because realigning the design again is a huge pain in the hiney! Hence the sharpie. :)
Next I use my lino-cutters to carve away everything EXCEPT the sharpie lines. Yes, I know the design is backwards. Think about it...when you stamp it you want it to imprint correctly, right? Well then, you have to carve it in reverse.
After I get all the details carved, I use my small exacto knife to cut away all the excess vinyl along the edges until I'm happy with it. Then I glue the vinyl stamp onto a piece of 1/4" thick foam and trim up the edges to fit the shape of the stamp. And Voila! A new stamp is born.