This small project was part of the Encounter Terrain 10×10 Terrain Building Competition hosted encounterterrain.com. The parameters were straightforward; each modeller has two weeks to create a 10 cm by 10 cm diorama based on a mystery theme. The theme for the May competition was “secret weapon.” I chose to create an abandoned missile silo. The materials were a combination of plumbing supplies, cast-off foam and some 3D printed details that I made on my Ender 3 pro. I’m happy with my creation, and I loved working in competition against a diverse group of like-minded individuals who were encouraging and supportive. I suspect that I will continue with monthly challenges as they offer a nice variety to my planned projects and force a greater level of creativity.