I use paper pantographs, but if you have a computerized machine you can purchase digital patterns. Here are a few websites that offer both:
http://www.longarmsupplies.net/linda...hpatterns.aspx,
http://www.goldenthreads.com/shop/category/pantographs/,
http://www.annebright.com/shop/categ...ized-designs/.
These are a few that I have purchased from, however there are several others out there as well.