This is my first attempt to create a cookie cutter - not yet tested. Please let me know if it worked.
Updated (v2) to get the dough out more easily.
Das Filament PLA
Drawn in Sketch, finished in Tinkercad.
Drawn in Sketch with the bezier tool.
I duplicated all parts twice and changed the line width for the handle and the cutter 5:1. Then I changed it to outline and exported each part as SVG. Make shure to have the same alignment to upper left corner. After importing in Tinkercad just adjust the heights.