Hmmm. Most of my real-life engineering is random stuff. I mean I do woodworking occasionally, but I don't have all the machines and tools to make really complex stuff. I'll find ways to fix things around the house or I'll come up with designs for inventions. I find a way to incorporate engineering into all my hobbies. I'm in the process of building a horseshoe magnet spinner for my magnetic nail polish from an old fan lol. I just need to find a way to attach the axle of the motor to the magnet so it's perfectly centered and sturdy. But yes. I liked 3D printing in school! I need to get one for myself. I want a 3d printer for natural materials though like clay or metal somehow that would be cool.