Has anyone seen or created a 3D printed dropbox? Something along the lines of the picture but scaled way down. For context: on our recent cruise many times someone would leave us a duck in our duck mailbox (flag down should mean that we have mail, not outgoing duck), at least 90% of the time, the ducks people left us got taken. Our neighbor, a kid, even admitted to taking one of the ones someone left us. 🤦‍♀️My kids were really sad that people were taking ducks that were supposed to be for them. So, my husband and I thought, what if we had like a drop box for ducks people were giving to us and the mailbox for outgoing ducks?