Check out this collection of cutout patterns and backgrounds. The intricate details are designed to cut at 12X12 inch, however you can still modify the size of the final cut. The cutting files can be also used sketching or engraving. Find them individually here. Some of these patterns have matching cutout cards, find them here.
Design suggestions: Cut them out of vinyl and use them as stencils for glass etching projects, or use with fabric or acrylic paint. Enjoy!