For anyone who had an interest in this thread, I just found by happenstance a stencil kit by Fiskars made for use with their ShapeBoss. I don't have the ShapeBoss, but I bought the stencil kit at my local Final Markdown store today, and it only cost $1.49! So, if it doesn't work out to my satisfaction, no big loss. The kit came with 3 different vinyl shape sheets, one of which has the curvy and zigzag lines I am interested in. One thing I like about it is that it has a matching top and bottom sheet to hold the card-stock between while scoring.