The Captured Glow-Sprite Lantern
 
We've managed to trap a tiny, light-emitting spirit for your decorating pleasure! (Okay, it's an LED tea light, but let's not ruin the magic).
 
This lantern is designed for maximum haunting with minimum effort. The built-in hook lets you dangle it menacingly (or charmingly), and the screw-top lid ensures you can replace the "spirit's energy source" without it escaping. Just a heads-up: these sprites are allergic to real fire—LEDs only, unless you want a very sad, melty puddle.