Unfortunately these jars cost much more than I was willing to spend. Because of this, I decided to make my own version, and share it with all of you.
Step 1: What You'll Need
~Some form of glue
~Soldering Iron (You may not need this)
~Dremel or similar tool.
~Solar-powered garden light
~Frosted Glass Finish Spray (You may not need this if your jar is already frosted)
~Paint for use on metal (Optional)
Before you get started. Make sure you know what you're doing, and observe all safety procedures. That means you should probably wear safety glasses and any other appropriate safety attire. Otherwise, you might end up with a piece of plastic or metal in your eye. Trust me, it's not fun.
Step 2: Disassembly
Basically, remove the post and stake until you get to just the head with the LED and Solar Cell.
Then, you'll have to remove any screws you encounter until you can get to the internal circuitry with the battery and LED.
Step 3: The LED
If you chose to replace the LED, make sure the LED you're using has the same voltage ratings as the one built into the garden light .The LED in my light ran off only a single rechargeable "AA" battery, (1.2v)
In this case, the term "modification" is simply a fancy term for "color."
So if you chose to color your LED, choose a suitable Sharpie or other permanent marker, and color away. Try to color the entire LED, leaving no clear space.