Use a simple, high-contrast picture: a black drawing on white paper works best. Everything dark becomes your shape.
Letters are turned into cut shapes. Thick, bold letters are easiest to cut. Letters like O and A keep their holes.
Your current design will be cleared from this browser. Save it first if you want to keep it.
SchoolCAD is free, browser-based CAD for school Design & Technology. Students design their own products in a full Part Studio with the same tools and names as Onshape, Fusion and SolidWorks (sketch, constraints, dimensions, extrude, revolve, sweep, loft, fillet, chamfer, hole, pattern, mirror, boolean, mates and drawings), so their skills carry straight over when they move on.
It is also built for differentiated instruction:
Free for students. Schools can have the projects they already teach loaded as scaffolded tutorials. Everything runs in the browser: no accounts, and nothing is uploaded.