Great piece from Alan Brown up on Tor.com.

Science fiction and fantasy fans love to dream about things that never existed. And some of them enjoy bringing objects and ideas from their imagination to life. Whether working from kits or making something from scratch, there is a great deal of enjoyment to be gained from model building, and satisfaction in seeing a finished project. This is a great time for those who enjoy the hobby: the internet has provided ways to share information with other modelers and to shop for kits and products from around the world, and the new technology of 3D printing has opened up even more ways to bring imaginary things to life. So if, like a lot of people these days, you have some extra time on your hands, you might want to look into model building

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