I just did one the night before last and I am doing another one tomorrow. The kind I am using are the ones you find at the wal-mart check out stand. I cut them out and remove the plastic then position it on my blank then wrap a wet paper towel around it and let the water soak in until the tattoo releases. I then pat it dry with another paper towel, let it dry for an hour or so. Once dry I set my lathe to it's slowest speed and apply5 or 6 coats of thin CA with a paper towel, allowing it to dry between coats. I then apply 5 Medium coats of CA, once dry I wet sand until smooth then MM to 3800 then plastix polish, ALL DONE. Hope this helps, and that it works out for you.
This is a shot of a pen I did using butterfly's, I do recommend using light colors as your background. :biggrin: