I've seen tuts on youtube on how to do it. Some people use clipart, then use a special mylar paper and it is sticky on one side, you set each stone upside down on the mylar paper following the outline of your clip art, words, etc. If you are doing words, make sure to print them out in reverse so that when you turn over right side up, the words are written correctly.
You can also buy a bunch ready made, I see the crown she used is at this website. http://www.myrhinestonetransfers.com...tegories/crown
Hope this helps!