You can decorate a Christmas tree in a variety of ways to show your individuality. You can use shiny ornaments and hand-me-downs from decades past, or you can express your geeky side with ornaments that are sci-fi- and pop-culture-themed. Or you can be geeky and decorate your tree with gadgets, gizmos and ornaments that do much more than simply look festive.
If you want to go the latter route, we’ve rounded up some of the most clever and innovative geeky ornaments we’ve found over the years. While some can be bought, others will require you to have a better understanding of electronics, soldering irons and 3D printers. You’ll also need more time for DIY projects than the holidays allow.