Nothing says cookie cutter storage like a box with cookie monster emblazoned on the front.
I ended up making a lot more cookie cutters themed after various marvel movie heroes and eventually figured a storage container was warranted. This design features a snazzy ogee at the bottom to help strengthen the box and make it look a lot less boring. A flare near the top helps add strength for the lid to slide in and out and adds another decorative bit of flair. For typical storage it is much easier to buy a plastic shoebox, but when you need personalization, 3d printing small boxes is an option. Now I just need to wait for all those sweet pressed cookie experiments to roll my way. Link to the box on thingiverse.