I've always liked mason jars. There is something uniquely Southern when it comes to these cultural mainstays. Try this with different colors/sizes of LED's to make it your own.
Step 1: Gathering Materials/Tools
Mason Jar (with band and lid)
Solar yard light
All weather sealer
Needle nose pliers
Most of the materials I already had and you can probably scrounge them up easily yourself. I spent $1.50 each on the solar lights at wally world. The copper wire was left over from the Arc Reactor instructable I found and completed from this website. I didn't end up using the needle nose pliers, but they may come in handy depending on the wire you use. I got the mason jars from my grandmother's garage. I recommend you seek those out through a similar avenue to find jars with character. Try to find a variety of jars for the "perfectly imperfect" look. You'll need a drill and a bit that matches up to the size of the LED, more on this later. I used liquid nails clear seal, but any all weather sealant should do the trick.
Step 2: Bore A Hole
Drill a hole through the center of the lid. Insert the bottom of the light through the hole to make sure the hole isn't too small or too large.
Step 3: Weather Proof
Run a bead of sealant along the outside diameter of the LED and fit inside the hole you just drilled into the lid. Once it's placed, run another bead on the other side. This will create a "double seal". I chose to seal at this location for a cleaner look. When I first tried this I didn't weather proof at all and wound up with a jar full of rain water. I opened up the solar powered LED yard light and was happy to find an 0-ring seal. Check to make sure the one you purchased has the same.