Okay, so this isn't going to win any awards for ingenuity (or craftsmanship!) but its easy and it works. I use this little jar and ones like it when we car camp. Barring high winds or rain, the tea light never goes out. The handle allows you to carry it around or hang it. Headlamps are all very convenient, but little candles make a campsite feel like home. And yep, it works well in the backyard too.
There's nothing to it, but just in case the picture makes it look more complicated than it is, all I do is wrap a piece of scrap wire around the mouth of the jar, twisting it closed. The ridges at the top of the jar hold it in place. Then I make a handle by twisting a second piece of wire around the first.