Cutting stamps for cookies. Bake them and assembly your 3d cookies. Cookie thickness should be 4mm for a stable fit.
tips- rolling out the cookie dough and try to bake 2 cookies first to test out the thickness for perfect fit. If the cookies connect too loose, you need to make the dough thicker. If they don't fit in the slots, then make the cookies thinner.
Orientation with sharp part up.