Since I can't draw, my way to try and design an original paper cut is by working with my photo-editing/graphics programme, PhotoImpact X3. With an idea in mind, and some bits and pieces found on royalty-free Dover cd's, I'm able to build my own "compilation" if you like. The result is nothing like the images that I took parts from.
With your graphics programme you can re-work the proportions of any shape to suit the design you have in mind, even erase parts you don't want to keep. Then, with some added path-shapes you can paste extras on to eventually build your very own design.
If only I had an inherent drawing/sketching gene, but this is the closest I can get to making my own images. If you paper-cut your own designs, I hope you'll share your method of creating your own here with your comments.