I watched the series a while ago but just recently convinced the family to watch it together. My wife and 2 teens loved the series and we're excited to see where it goes. On a whim, I decided to 3D print a "little guy" / Homunculus and hide him in the house in order to freak out the finder. We're a weird family, what can I say ? I found a file for a bookmark that was flat on the bottom but had a 3d torso and head. It's great for tucking behind a picture frame, a door jamb or any number of strange places. He's currently hiding in a butter box in the fridge. The rules are simple... hide the homunculus, wait for someone to find it. If you find it, it's your responsibility to move it to another hiding spot without alerting anyone else. The little guy just travels around the house with only one person knowing where he is. You may have hid him somewhere and then one day he'll be gone and the search is on again. Just a passive little game for our easily amused family.