These DIY ornaments will give you even more reason to sit and stare at your Christmas tree. Filled with rheoscopic fluid that uses tiny non-dissolvable shimmering particles to make the turbulent flow of liquids more obvious, these ornaments also house tiny DC motors and drone propellers that constantly stir everything up and keep the fluids in motion. The end result is a bauble that looks like a time lapse video of the atmosphere of a distant planet.

If the Super Nintendo was once at the top of your Christmas wish list, why not hang one near the top of your Christmas tree? Hallmark’s $20 replica is almost indiscernible from the real thing, except that this SNES is just over three inches long. It can’t actually play anything, but a button press turns on the SNES’ power light and plays sounds from Super Mario World.

The Nintendo Switch has been appearing on holiday wish lists for six years, and now your Christmas tree can have its very own with this DIY, 3D-printed miniature replica that can’t actually play games, but does include a working screen that runs a constant loop of Switch gameplay GIFs off a microSD card in the back. On December 25, it switches to more festive GIFs to help celebrate the holiday.

If you’ve already got Hallmark’s Super Nintendo ornament on your tree, you might as well go ahead and add the Sega Genesis version too, and recreate the bitter 16-bit rivalry that destroyed friendships and families, and marred the gaming landscape of the early ‘90s. Like the SNES ornament, the $23 Genesis bauble features a button that activates LED lights while the tiny console replica plays sound effects from Sonic The Hedgehog.

A properly decked Christmas Tree is often full of little surprises, such as this boxy ornament created by Jordan Wills that reveals its secret when a capacitive button hidden underneath is pressed. The ornament comes to life, becoming a Super Mario Bros. question block that not only plays sound effects every time the button is pressed, but also lights up a laser-etched acrylic coin floating atop of it. We’re not sure if triggering the sound effect and lights 100 times earns you an extra life.

For quite a few years, YouTuber Sean Hodgins was one of the most prolific innovators of Christmas ornaments on the internet—and we’re not just talking about finding new ways to use sparkles. This DIY zoetrope ornament is a masterclass in one-day-engineering. A series of laser cut animation frames spin inside a 3D-printed ornament-sized housing, while magnets and hall effect sensors trigger an LED to flash, briefly illuminating each frame as it passes a window, creating the appearance of a simple animation from the outside.

Proving once again that Doom can rear its head in the most unusual of places, this 3D-printed ‘80s/’90s desktop PC ornament features an ESP32 board hidden inside, running a custom Game Boy Advance port of the iconic first-person shooter. The ornament’s tiny working screen can autonomously play the demo mode of Doom all day long, but a wireless Bluetooth controller can also be connected to this ornament for those willing to squint their way through the game.

Let’s face it, if your desk is covered in a mountain of gadgets, your floor is probably littered with discarded FedEx shipping boxes. The two go hand in hand today, so what better way to decorate your Christmas tree than with a tribute to the unsung hero of gadget obsessions? As an added bonus, all through December, you can let your imagination run wild wondering what miniature gadget is inside this miniature shipping box.