The Super Mario Bros. mushroom cookie cutterssize: 105.27 x 104.84 x 15.00 mm (4.14 x 4.13 x 0.59 in)
The cookie cutter contour will cut the pastry and the inside will impress the shape on it. Also you can scale up or down the model as you wish.
P.S. check out my profile to see more designs
3D printing settings:
Best results will be with PLA material.