To add contour cut lines in Adobe Illustrator for Roland Versaworks you can download the Free Roland Versaworks Color Swatches.
The contour cut line will then be recognized by Roland Versaworks telling the the Roland BN-20 or BN-20A where to contour cut around an image.
Check out So Fontsy's full section of commercial free full color artwork for Roland BN-20 and BN-20 perfect for heat transfers and vinyl stickers!
Do you use a Silhouette CAMEO Pro with your Roland BN-20? We also offer a free print and cut template.